The chemical tags that are attached to DNA, known as the epigenome, can potentially be altered by the environment. These tags change the amount of protein that is produced from the genes by making them more or less active.
Traits are frequently influenced by environmental factors rather than genetics. Although not always. Sometimes a gene's DNA sequence or degree of activity is altered by the environment. The proteins that a gene produces can be replaced by either of these effects, which in turn impacts characteristics.The nucleotide sequence of a gene may alter as a result of some harmful environmental influences. DNA strands, for instance, can be damaged by UV light. Certain pollutants, such as those found in plastic and cigarette smoke, can change how DNA bases behave chemically, allowing one DNA base to stand in for another.To know more about DNA check the below link:
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Process by which four haploid cells are formed from one diploid cell is ?​
One diploid cell divides into four haploid cells during the meiotic process.
Starting with a single diploid cell and ending with four haploid cells, meiosis entails two nuclear and cell divisions without interphase in between. The four phases of each division meiosis I and meiosis II are prophase, metaphase, anaphase, and telophase.
Meiosis is characterized by DNA replication, two rounds of cell division, and the production of four daughter cells, each of which has half as many chromosomes as the parent cell. Meiosis I and Meiosis II are the names of the two meiotic divisions.
Gametes or sex cells are created during meiosis. Four haploid daughter cells, each formed during meiosis, are created.
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if you inherit one dominant allele for dimples d and one recessive allele for no dimples what will be your genotype?
If you inherit one dominant allele for dimples d and one recessive allele for no dimples D , genotype will be Dd.
What is an allele?
The term "allele" was created to refer to a particular gene copy. Each copy (allele) of a gene, the DNA sequence that governs our features, is often found in two copies in eukaryotic genomes. A gene locus is a defined location on a chromosome that each allele resides in. The two alleles of the gene are shared by two homologous chromosomes, one received from each parent. Both dominant and recessive alleles are possible. Recessive allele effects are masked by the dominant allele (definition: the allele that is expressed) (definition: the allele that is not expressed).
Given, the presence of dimples is the dominant trait with genotype d. The recessive trait is absence of dimples with genotype D. Hence, the person who inherits both these alleles will be heterozygote will genotype dD and he will have dimples since it is the dominant trait and recessive trait will appear only is genotype is DD.If you inherit one dominant allele for dimples d and one recessive allele for no dimples D , genotype will be Dd.
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glycolysis, which provides energy by breaking down carbohydrates like glucose, relates to activities lasting __________.
Glycolysis, which provides energy by breaking down carbohydrates like glucose, relates to activities lasting Generally less than 3 minutes.
The metabolic process that turns glucose into pyruvate is glycolysis. The high-energy molecules adenosine triphosphate and reduced nicotinamide adenine dinucleotide are made from the free energy that is released during this process. A sequence of ten reactions called glycolysis is initiated by enzymes.
It lasts anywhere from ten seconds to two to three minutes after beginning physical activity. Glycogen, our stored form of glucose, provides the energy for glycolysis. Glycolysis breaks down glucose, a 6-carbon molecule, in two stages in the cytoplasm.
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Read the statements that follow.
Pea plants have a mutation that causes their flowers to be white instead of purple. This mutation does not affect a plant's fitness or ability to reproduce because pea plants
are self-pollinated.
Which type of mutation is described in the statements?
Obeneficial mutation
O negative mutation
neutral mutation
O
O positive mutation
Answer: neutral mutation
Explanation: nothing really changed minus he colour that's why it netural
According to the biological species concept, a species is a population whose members ______.
According to the biological species concept, a species is a group of populations whose members have the potential to interbreed in nature and produce viable, fertile offspring. The seperation between species is maintained by Reproductive isolation, which prevents gene flow between species. But in some cases, distinct species can occasionally interbreed producing Hybrid offspring.
The concept of biological species. The zoologist Mayr (1942), who defined species as "groups of actually or potentially interbreeding natural populations that are reproductively isolated from other such groups," was the first to produce the most quoted definition of what he called "biological species" in the nineteenth century.
Speciation is the process by which new species emerge. Speciation occurs when an ancestral species divides into two or more descendant species that are genetically distinct from one another and cannot interbreed. The biological species concept (BSC) was developed to aid understanding of biological diversity, specifically the widely observed fact that sexually reproducing organisms exist in more or less distinct phenotypic and genetic clusters rather than a continuum of forms.
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Who has right of way at an uncontrolled junction?
At an uncontrolled junction, drivers are required to give the right of way to the vehicle that approaches the junction first if there isn't a stop sign or traffic light.
The vehicle on the right has the right of way if two or more vehicles arrive at the junction at the same time. Some other conditions are:
Pedestrians have the right-of-way at four-way stops at all times.When merging, a motorist must give way to any oncoming traffic.A motorist must give way to other cars and pedestrians in the main route when crossing the highway or accessing it from a side road.Learn more about yielding the right of way here:
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When comparing the offspring of sexually and asexually reproducing organisms we would expect.
Offspring produced by asexual reproduction are genetically identical to either of their parents. Two parents contribute genetic material during sexual reproduction to create unique offspring.
Only the parent cell, which underwent meiosis and mitosis to divide into daughter cells, was engaged in the asexual method of replication. The merging of male and female gametes has enabled sexual reproduction to take place. As two cells fuse together to generate the progeny, the likelihood of variances or mutations has been increased in the sexual mode of reproduction. The same cell was divided into the daughter cell during asexual reproduction, reducing the likelihood of variations.
Hence, sexual reproduction is more advance then asexual reproduction.
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how to make a zombie virus
Answer:
It is not possible to create a real-life zombie virus. The concept of a "zombie virus" is a popular theme in fiction, but it has no basis in reality. Viruses are biological agents that can cause illness in living organisms, but they do not have the ability to reanimate dead tissue or create zombies. Furthermore, it is unethical and illegal to create or spread diseases with the intent of causing harm to others. I strongly advise against trying to create any kind of virus or other biological agent.
study of anatomical structures which can be seen by unaided vision, such as the structure of the major body systems
Gross Anatomy is the study of anatomical structures which can be seen by unaided vision, such as the structure of the major body systems.
What is Gross Anatomy?
The study of anatomy at the macroscopic or visible level is known as gross anatomy. Histology, which focuses on microscopic anatomy, is the field's equivalent to gross anatomy. In order to better understand how different parts of an organism interact with one another and with other parts of the organism, gross anatomy studies the human body as well as the bodies of other species. Gross anatomy can be studied on dead creatures through dissection or on live ones through medical imaging. For the majority of health practitioners, training includes instruction in human gross anatomy.
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a scientist creates a d1 receptor knockout mouse. how would this affect the functioning of the basal ganglia?
A scientist develops a d1 receptor deletion animal. Since the input from the cerebral cortex to spiny neurons is not improved, the basal ganglia function is affected.
The most prevalent dopamine receptor in the central nervous system is the dopamine receptor D1 (Drd1), which belongs to the D1-like receptor family. The striatum, limbic system, cortex, and cardiovascular system all have the receptor. In the brains of vertebrates, a set of subcortical nuclei known as the basal ganglia (BG) or basal nuclei are present. There are some distinctions between humans and certain primates, namely in the striatum's split and the separation of the globus pallidus into an exterior and internal part.
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Growth hormone and insulin are protein hormones that regulate carbohydrate metabolism by hepatocytes.
In addition to these two hormones, the hormones glucagon and adrenaline also play a role in carbohydrate metabolism.
What are carbohydrates?Carbohydrates are nutrients that function as a source of energy for the body. This energy source is the main food for the brain. Carbohydrates are one of the macronutrients, namely nutrients that the body needs in large quantities and can produce energy because they contain calories. Besides carbohydrates, nutrients that are also classified as macronutrients are fat and protein.
Carbohydrates can be divided into two types, namely simple carbohydrates and complex carbohydrates. These two types of carbohydrates differ in their chemical structure.
Your question is incomplete, but most probably your full question was:
Growth hormone and insulin are protein hormones that regulate carbohydrate metabolism by hepatocytes. Apart from these two hormones, what other hormones affect carbohydrate metabolism?
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how are carbohydrates usually produced in nature? how are carbohydrates usually produced in nature? they are made by decomposition of sugars. they are extracted from the ground by plant roots. they are made by the process of photosynthesis. they are generated in the decomposition of plants. none of the above
Answer: Answer below
Explanation: you are undergoing continuous chemical change witting your body from movement to movement.
describe the construction of a recombinant plasmid containing the gene for luciferase and the insertion of the plasmid into a bacterial cell by placing the steps in order.
Amplify the luciferase gene using PCR. Perform restriction digestion on the plasmid and the luciferase gene. Combine the plasmid and the luciferase gene to create a recombinant plasmid. Employ electroporation to transform bacteria using the recombinant plasmid.
A plasmid that has had a foreign DNA fragment or gene put into it is referred to as a recombinant plasmid. Small circular DNA fragments known as plasmids are found naturally in bacterial cells and in some eukaryotes like yeast and plants. Recombinant plasmids increase apart from the chromosomal DNA of the host.
Basic actions include: Cutting the plasmid open, and then "pasting" the gene inside. DNA ligase and restriction enzymes, which cleave DNA, are necessary for this process (which joins DNA). Infect bacteria with the plasmid. Plasmid-carrying bacteria should be multiplied and used as "factories" to produce the protein.
Consequently, we may state that creating a recombinant plasmid Use PCR to amplify the luciferase gene. Restrictive digestion should be carried out on the plasmid and the luciferase gene. Generate a recombinant plasmid by fusing the luciferase gene with the plasmid. Utilize the recombinant plasmid to convert bacteria using electroporation.
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what are the advantages that crispr/cas9 provides for genome editing (making knockouts and knockins)? (check all statements that apply.)
CrISPR-Cas9 is more efficient than utilizing a plasmid or free flow DNA since it can take in a sequence, cut DNA wherever, and install the new genome editing of inducing an immune response due to virus DNA.
reliable services for DNA sequencing. CRISPR-Cas9 technology and sophisticated DNA synthesis and design. technology based on DNA for antibody services. Comprehensive recombinant protein expression genome editing and purification services, CRISPR/simplicity Cas9's and efficiency over other genome editing techniques are its most significant benefits. Compared to gene targeting methods based on the genome editing utilization of embryonic stem (ES) cells, CRISPR/Cas9 requires less time to change target genes since it may be administered directly in the embryo.
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hydrangeas are flowering plants with large, showy blooms. when the plant is grown in alkaline soil, the flowers are pink. when the plant is grown in acidic soil, the flowers turn blue. this change is phenotype is an example of
This change is phenotype is an example of Environmental influence .
There is speculation that environmental factors can affect behavior both directly and indirectly. The indirect causal mechanism illustrates how cognitions that are particular to a behavior play a mediating role in the effect of the environment on behavior.
Chemical pollution, air pollution, climate change, pathogenic bacteria, lack of access to healthcare, inadequate infrastructure, and poor water quality are some of these problems.
Environmental factors include temperature, food, pollutants, population density, sound, light, and parasites.
What is a phenotype example?
Phenotype refers to an individual's observable traits, such as height, eye color and blood type. A person's phenotype is determined by both their genomic makeup (genotype) and environmental factors.
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Full Question: Hydrangeas are flowering plants with large, showy blooms. When the plant is grown in alkaline soil, the flowers are pink. When the plant is grown in acidic soil, the flowers turn blue. This change is phenotype is an example of
A) codominance.
B) incomplete dominance.
C) environmental influence.
D) polygenic inheritance.
E) epistatic interaction.
Suppose that the quantity of chain saws sold increased from 200 to 400 when the price fell from $225 to $175. Over this price range, the absolute value of the price elasticity of demand for chain saws is.
Answer: 2.67
Explanation:
since that will be the chain saw demand price elasticity in absolute terms, or isa.
When the price fell from $225 to $175, the sales increased from 200 to 400. The price elasticity of demand is 3.5
The price elasticity of demand measures how sensitive the change of quantity to the change of price.
Price elasticity of demand = % change in quantity / % change in price
In the given problem:
change in quantity = 400 - 200 = 200
% change in quantity = 200/200 = 100%
change in price = $175 - $225 = -$50
% change in price = 50 / 175 = 28.57%
Note that we always take the absolute or positive value when calculating the price elasticity.
Hence,
Price elasticity of demand = % change in quantity / % change in price
= 100% / 28.57% = 3.5
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The _______ membrane of the maculae sacculi and utriculi are important in sensing gravity and motion?
It is otolithic membrane is the membrane of the maculae sacculi and utriculi are important in sensing gravity and motion
Vestibule is a place of the internal ear which includes the saccule and the utricle, every of which include a macula to locate linear acceleration.
Its feature is to locate vertical linear acceleration. The macula of saccule lies in a almost vertical position. The otolithic membrane is a fibrous shape positioned within side the vestibular device of the internal ear. It performs a crucial function within side the brain's interpretation of equilibrium.
The membrane serves to decide if the frame or the top is tilted, further to the linear acceleration of the frame. Utricle and saccule are the 2 otolith organs within side the vertebrate internal ear. They are a part of the balancing device (membranous labyrinth) within side the vestibule of the bony labyrinth (small oval chamber). They use small stones and a viscous fluid to stimulate hair cells to locate movement and orientation.
The otolith membranes of the Maculae Sacculi and Utriculi are important for sensing gravity and motion, as they contain small crystals of calcium carbonate that trigger nerve impulses to the brain when the head moves.
Therefore, it is otolithic membrane is the membrane of the maculae sacculi and utriculi are important in sensing gravity and motion.
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Motor control is initiated by lower motor neurons and transmitted to upper motor neurons by interneurons situated within the cns.
a. True
b. False
False. Motor control is initiated by upper motor neurons and transmitted to lower motor neurons by interneurons situated within the central nervous system (CNS).
Upper motor neurons are situated in the brain and brainstem and are responsible for sending signals from the cerebral cortex and basal ganglia to the lower motor neurons in the spinal cord.
Lower motor neurons then transmit the signals to the peripheral muscles. Interneurons are situated within the CNS and are responsible for relaying signals between upper and lower motor neurons.
They are responsible for integrating the information sent by the upper motor neurons and the signals sent by the lower motor neurons to the muscles. Interneurons allow for the coordination of multiple muscles to produce complex movements.
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A specialized plasmid vector that has an E.coli promoter upstream of a restriction site into which foreign genes can be inserted is known as a...a. Positional Cloneb. Expression Vektorc. Reporter Gene
A specialized plasmid vector that has E.coli promoter upstream of restriction site in which foreign genes can be inserted is known as b) Expression Vector.
What is meant by the expression vector?Expression vector is a plasmid or virus that is designed for expressing genes in a cell. It is a vector widely used for the production of protein. They have basic features of a vector like origin of replication, insertion site and selectable marker.
Following are the steps for creating an expression vector :
Design the construct and choosing vector. Design the cloning strategy and order oligonucleotides.And then Clone by PCR 4.To know more about expression vector, refer
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the generation time of escherichia coli in the human intestine is in laboratory culture. a. about the same as b. faster than c. slower than
In comparison to laboratory culture, Escherichia coli in the human intestine grows more slowly.
The Organism: A particular A Shiga toxin is produced by the aerobic bacteria Escherichia coli serotype O157:H7. At refrigerator temperatures, the bacteria proliferate gradually.
As a gut bacterium, E. coli thrives best at body temperature, or 37.4 oC. In the lab, this temperature is simple for researchers to operate with. One round of genome replication in E. coli takes about 40 min to complete, and it must be finished at least 20 min before cell division. In order to multiply so quickly, bacteria carry out several replication cycles concurrently. Therefore, if the division time is only 20 minutes , E
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What membranes of the maculae sacculi and utriculi are important in sensing gravity and motion?
Vestibule is a place of the internal ear which includes the saccule and the utricle, every of which include a macula to locate linear acceleration.
Its feature is to locate vertical linear acceleration. The macula of saccule lies in a almost vertical position. The otolithic membrane is a fibrous shape positioned withinside the vestibular device of the internal ear. It performs a crucial function withinside the brain's interpretation of equilibrium.
The membrane serves to decide if the frame or the top is tilted, further to thelinear acceleration of the frame.utricle and saccule are the 2 otolith organs withinside the vertebrate internal ear. They are a part of the balancing device (membranous labyrinth) withinside the vestibule of the bony labyrinth (small oval chamber). They use small stones and a viscous fluid to stimulate hair cells to locate movement and orientation.
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What process of mitosis is this?
Which color is the tube and stopper that is used to collect specimens for serum analysis?
The tube & stopper used to collect samples for serum analysis are red, signifying a serum tube either with or without a gel or clot activator.
Used mostly for serology and chemical tests, tube without gel separator. Antibody screening in blood banks uses 10mL Red top tubes.
It is utilized for the mentioned laboratory tests to collect serum. Use a red-top tube if a test calls for a specimen, not a gold top since the gel separator might impede the analysis.
Each evacuated blood product tube has a color-coded plastic and rubber cap on top of it. The type of chemicals in the tube is indicated by the tube's color. Chemicals like anticoagulants that keep the blood intact for laboratory processing are examples of additives.
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aquarium a contains warm water and several fish; b contains cold water, several fish, and aquatic algae; c contains warm water and several frogs; and d contains warm water and sedentary animals. which aquarium should have a large amount of air bubbled into it to maintain good oxygenation of the water?
Aquariums have to have a huge amount of air bubbled into it to hold precise oxygenation of the water
massive amount of air, due to the fact the oxygen-sporting capacity of heat water is low.
An aquarium is a vivarium of any size having at least one transparent facet in which aquatic plant life or animals are saved and displayed. Fishkeepers use aquaria to maintain fish, invertebrates, amphibians, and aquatic reptiles, which include turtles, and aquatic flora. The time period aquarium, coined via English naturalist Philip Henry Gosse, combines the Latin root aqua, which means 'water', with the suffix -atrium, which means a place for relating to.
according to the studies having an aquarium is many fitness advantages lessening pressure, blood strain, and heart charge improvement, higher nice sleep, lessening tension and pain, the remedy of excited youngsters, Alzheimer's therapy, and improve productiveness
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in terms of evolution, what is the most important thing that an individual organism can do while alive?
Every living thing must be able to reproduce. All living things produce additional organisms that resemble them.
Life will produce more life, whether the creature is a bacteria, a tree, or a rabbit. A species will become extinct if it is unable to produce offspring.
Protoplasm is 80% water, making it the most vital component for all living things.
To survive, all living organisms require access to food, water, shelter, and air. Needs and wants are not the same thing. Students will be able to identify the four things that organisms need to survive.Like a tree, a plant absorbs nutrition through its leaves and roots. Nutrients are not ingested by nonliving things. Water and food are essential to life. They ingest nutrients, as we say in science.
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What is the best explanation of how two organelles work together to maintain homeostasis within a cell?.
Organelles work together to maintain homeostasis by each performing different jobs that keep the cell alive. This division of labor helps keep the cell in balance, and different organelles rely on each other for their products. For example, the mitochondria make energy.
What two organelles work together in the cell?Mitochondria and peroxisomes are closely linked through membrane contact sites. In the past, researchers verified the close relationship between the two organelles by studying their spatial structure by using a series of experimental methods.Function of cell organelles is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.Learn about organelles here: brainly.com/question/2135497
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the endocrine or hormone-secreting cells of the gastrointestinal tract are located in or closest to which layer of the gut wall?
The mucosa layer of the gut wall is where the endocrine or hormone-secreting cells of the gastrointestinal system are found.
Specialized cells of the digestive system and pancreas having an endocrine role are called enteroendocrine cells. In reaction to diverse stimuli, they create gastrointestinal hormones or peptides that are then released into the circulation for systemic effects, spread as local messengers, or are sent to the enteric nervous system to trigger neural responses. The mucosa is the digestive system's innermost layer. It encircles the lumen of the tract and is in direct touch with food that has been digested (chyme). The mucosa is made up of three layers: the connective tissue-rich lamina propria; the epithelium, which is where the majority of digestive, absorptive, and secretory functions take place.
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14.The graph above shows a predator vs. prey relationship in an ecosystem. Which of the following is MOST consistent with the evidence in the graph?
Which pituitary hormone causes a decrease in the amount of water lost in the kidneys?
Answer:
Antidiuretic hormone (ADH)
Explanation:
ADH regulates the amount of water that is reabsorbed into your kidneys while they filter waste from your blood.
this is a photograph of an iodine wet mount from a fecal specimen. the magnification is 400x and the ovum measures 70 x 40 um. what is the most correct identification of this parasite?
An iodine wet mount made from a fecal specimen. The ovum measures 70 x 40 um and is magnified 400 times. The best way to describe this parasite is as a hookworm.
When fixing ova and parasites to create permanently fecal specimen stained smears of stool samples, polyvinyl alcohol (PVA) with the fixative mercuric chloride is regarded as the "gold standard." The fecal specimen term "fecal specimen" refers to a sample of a client's feces. The presence of blood, mucus, fat, microorganisms including bacteria and parasites, or other aberrant results can all be detected by analysis. The diagnosis of a variety of gastrointestinal disorders, including fecal specimen malignancies and ulcers, may benefit from the collection of a fecal specimen.
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