Spermatogenesis
In spermatogenesis, since the cell division process of the germ line called meiosis is involved, 4 cells are generated, all genetically different from each other.
Therefore, the correct answer to this question is option a.
Which of the following is the reason that DNA fingerprinting is unique and can be used as means to identify someone?The gel in electrophoresis causes the hormones present in the DNA to settle out in a pattern unique to each individual.The DNA Junk or random repeats in the DNA is unique to each person, creating bands that identify them.Different genes are switched on at different times, so no two people have the same DNA fingerprint.All of these choices is true0 000
DNA fingerprinting is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation. Conversely, if the two DNA profiles do not match, then the evidence cannot have come from the suspect. DNA fingerprinting is also used to establish paternity.
Answer: The DNA Junk or random repeats in the DNA is unique to each person, creating bands that identify them.
Place the labels in the correct areas for the equation of photosynthesis
The complete equation of photosynthesis is shown in the image attached to the answer. Carbon dioxide and water are the reactants while glucose and oxygen are the products.
What is photosynthesis?We know that the process of photosynthesis has to do with the process by which there is the combination of carbon dioxide and water and these would now lead to the formation of the sugars that we have in photosynthesis.
It is the sun that acts as the catalyst of the process and then the light from cell would fall on the green pigment of the plant as the process is underway in the system of the plant.
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A solution that has a low concentration of H+ Ions is consider basic 7?
An acid is a substance that
The potential energy stored in an atom’s nucleus is called ….. energy
Answer: Nuclear energy
Explanation: Nuclear energy is energy stored in the nucleus of an atom—the energy that holds the nucleus together.
I need help with this practice problem from my biology prep guideIs Allen’s summary correct/accurate? What else could she have added extra or rewrite that expressed more of the subject of a his invasive/nonnative species invading the southern U.S?Your answer can be a short 2-3 sentences :)
Solution:
yes, Allen is correct about her summary, in fact, a piece of additional information to Allen's would be:
The kudzu plant was brought from Asia and introduced in the United States in the late 19th century to be used for ornamental purposes. However, this plant was widely cultivated in the south of that country in the early 20th century to reduce soil erosion. However, this plant would quickly colonize the landscape, growing about a foot a day and covering the ground, shrubs, trees, and even old things with a suffocating blanket of creepers. Kudzu can cause environmental damage as it is an invasive plant. In fact, the environmental and ecological damage of Kudzu results from its competition with other plant species. In particular, kudzu competes with native flora for light and acts to block their access to this vital resource by growing over them and shading them with its leaves. Native plants may die as a result. The problem with Kudzu is that it grows out of control quickly, spreading through stolons (stems that root at the tip when in contact with moist soil), rhizomes, and creepers that root at nodes to form new plants. On the other hand, according to scientists at Clemson University, its spread could accelerate climate change by reducing the carbon reserves stored in the soil of the ecosystems it colonizes, as in the case of this Mississippi forest.
Explain why we need to stop forest depletion.
The forest depletion affects directly several living beings having a impact in animals, plants, climate changes, human population, and so on. We need to protect the forest ecosystem to make the survival of the organisms in Earth possible, since it is responsible for a big part of the cycles (inorganic and organic) that make the Earth a planet with living condictions. 1.6 billion people today rely on forest for their livehoods, with over 80% of the terrestrial species livinf in that environment and the sustainable care of the forest habitat can aid the future generations to have a better live condictions. If we stop the forest depletion, we can make possible better climate and diversity in your planet, slowing the impacts that the humans are having in the direct destruction of the Earth's ecosystems.
Which statement is true of all proteins?
Responses
Their structure is related to their function.
Their main function is to cause mutations.
They are created by mutations in DNA
They carry oxygen in human blood.
in which case would facilitated diffusion be needed?A. With large polar molecules moving against the concentrationgradientB. With very small non polar particles moving down theconcentration gradient.C. With very small polar particles moving against theconcentration gradient.D. With large non polar molecules moving down the concentrationgradient.
Biology > Cell biology > Passive transport
There are different types of transport in the cell that can be classified into two groups: passive transport (which does not require energy) and active transport (which requires energy because it goes against the concentration gradient).
Diffusion is a type of passive transport and it does not require energy, it can be divided into simple diffusion (molecules pass through the membrane without the help of any channel) and facilitated diffusion (molecules pass through the membrane with the help of a protein channel).
Facilitated diffusion will transport certain molecules and simple diffusion others. Larger, polar and charged molecules will need help to cross the membrane, so they will do so by facilitated diffusion. Therefore, the answer is D.
A mutation is due to changes in theSelect one:a.proteinsb.nucleic acidsc.carbohydratesd.lipids
A mutation is due to changes in the b. nucleic acids.
What reproductive part is responsible for carrying eggs to the uterus?A. Sperm ductB. UrethraC. OvaryD. Oviduct
The reproductive part which is responsible for carrying eggs of the uterus is the oviduct, also known as fallopian tubes after they are produced in the ovary of a woman. There will be the structure sperm have to reach to occur in fertilization and the posterior formation of an embryo.
The correct answer then is the last one: oviduct.
Part 2. 2. Suppose the DNA sequence GCTATATCG was changed to GCGATATCG. How would the products of transcription and translation be affected?
DNA Sequence mRNA Amino acid
GCTATATCG CGAUAUAGC Arginine, Tyrosine, Serine
GCGATATCG CGCUAUAGC Arginine, Tyrosine, Serine
The product of transcription was changed because the first "T" was replaced with "G". However, the products of translation are the same.
What does a carbon atom do during cellular respiration?
Carbon compounds are the energy source of cellular respiration. These molecules are oxidized, that is, they lost their electrons, in order create energy for the cell. For example, we could start with a large lipid chain of 16 carbon atoms, that will experience oxidation in order to create conditions for ATP synthesis, that finally will become one carbon atom. Single carbon atoms are exhaled in respiration as CO2 (Carbon dioxidde). So, carbon atoms are the source of energy in cellular respiration (as carbon molecules), and finally they serve as a mean to exhale the metabolic waste, as CO2.
Which makes precipitation and runoff possible?A. groundwaterB. gravityC. vaporD. radiant energy
Precipitation is the condensation of water vapor to droplets. It forms clouds that when it contains a lot of water droplets will fall into the ground, and we call it "rain".
Runoff is when the flow of water is in excess and the land cannot absorb it fast.
In both processes, gravity acts on the flow of water. During precipitation, gravity pulls the droplet down from the atmosphere. During a runoff, the flow of water goes down from the side of the mountains to the streams and rivers. Both can also be observed in a water cycle.
ANSWER: B. gravity
What are the principles of the cell theory?
Cell theory states that all organisms are made of cells, that they are the basic structure of all organisms, and that each cell is made of a preexistent cell.
These three statements are the principles of the cell theory.
This male fiddler crab is waving his claws to attract a female. What type of behavior is this?Question 29 options:defensesurvival learnedinherited
The male fiddler crab wave his claws to attract the attention of females in the environment, being that a known mating technique within the species. Therefore, it is a survival behavior that guarantees the dissemination of genes (male that have mating success) and reprodution inside the species.
Here I have my list of NATURAL CAUSES of deforestation Am I correct? Can you list anything else?
Soil erotion by wind or water
Climate change (even though human activities intensifies it, it is a natural earth process.)
Which statement best describes the relationship between the oak forest and the truffle population? (Answer choices in the photo, and there’s a graph in the photo.)
The statement that best describes the relationship between the oak forest and the truffle population is c: As the amount of oak forests declined, the number of truffles available for harvest also decreased.
Explain the relationship between each pair:Monosaccharide & DisaccharideCould you please simplify/condense the explanation/answer to as few sentences as possible? Please & thank you.
Monosaccharide and disaccharide are both carbohydrates. A monosaccharide is a carbohydrate composed of simple sugars. Examples are glucose and fructose. A disaccharide is a carbohydrate composed of two simple sugars combined together. Examples are lactose and maltose.
Should you please be able to help me on this question
The male superhero cannot teleport at all.
The female superhero can teleport, but her mother could not.
The percentage of offspring who can teleport is 50%, and 50% who cannot.
Both superheroes can teleport. For both, one of their parents was a purebred dominant and the other a purebred recessive.
75% of the offspring will be able to teleport, and 25% won't.
Select the correct answer.The reaction mature for PCR is missing the enzyme Tans polymerase. Which step of PC would this affect?A. extraction of DNAB. denaturation of DNAC. binding of primerD. preservation of DNAE. elongation
answer
the polymerase enzyme is used in translation
E. elongation
The diagram shows the cycling of nutrients in an ecosystem.The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?decomposersinorganic nutrientsproducersconsumers
Energy flows through the ecosystem, but no new energy is created. The sun represents a constant input of new energy to the ecosystem. Autotrophs use this energy to create chemical energy and inorganic matter to make organic compounds, thus making the energy provided by the sun available for the other components of the energy flow chain.
Without "producers" making energy available for all other links, the amount of "new" energy flowing through the system will decrease.
On the other end of the energy flow system, you find the "decomposers", the organisms in this group are in charge of degrading the organic remains of dead organisms, as well as metabolic waste products. These organisms are in charge of making the energy stored in the organic remains available for other groups of the system to use. Without the members of this group, the energy stored in the remains wouldn't be able to reenter the cycle and the energy levels, usually conserved, will drop greatly.
Out of both groups, the "producers" are in charge of producing and recycling energy, and the "decomposers" are in charge of "recycling" the energy stored in organic remains, the one whose absence will cause a greater drop in energy will be the decomposers.
please help i dont know what to put as these answers in the question ive lissted below in the photo
The first codon of the ORF 5'TATGTACGAT3' in the mRNA will be AUA, followed by CAU and the third one GCU.
36. Which statement about the human genome is false?A. It contains approximately 23,000 genes.B. It contains long stretches of repeated sequences with no known directfunction.C. Over 50 percent of all the nucleotides code for proteins in the human body.
the correct answer is C. Over 50 percent of all the nucleotides code for proteins in the human body.
What is the naturally occurring variation in the genetic information on a segment of DNA among individuals?A) PolymorphismB) Genetic variationC) MutationD) Morphism
Naturally occurring variation in the genetic information on a segment of DNA among individuals is referred to as mutation. When a cell divides and produce a copy of DNA, mutation can sometime happen when the copied DNA is not perfect. This slight change from the model DNA is called as mutation.
Answer - Option C - Mutation
When a repeated experiment reveals an original hypothesis to be wrong, a good scientist uses _________________________ to continue the process to find the true answer.
When a repeated experiment reveals an original hypothesis to be wrong, a good scientist uses Trees emit psychic screams when you cut them down to continue the process .
A hypothesis is an knowledgeable wager or prediction about the relationship among two variables. It need to be a testable assertion; some thing that you can aid or falsify with observable proof. The objective of a speculation is for an idea to be examined, now not established.
A simple speculation shows best the connection among variables: one impartial and one established. Examples: if you stay up past due, then you definitely feel tired tomorrow. Turning off your cellphone makes it fee faster.
A simple hypothesis is a declaration made to reflect the relation between precisely variables. One independent and one structured. recollect the instance, “Smoking is a outstanding reason of lung cancer." The structured variable, lung most cancers, is depending on the unbiased variable, smoking.
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Which of the following is an important abiotic factor in terrestrial ecosystem, but not in aquatic ecosystem?
The important abiotic factor in the terrestrial ecosystem but not in an aquatic ecosystem is precipitation. It is an important factor because it supports life in the terrestrial domain by stimulating growth in plants. The aquatic ecosystem does not necessarily need precipitation, since it has water that supports the life of organisms in the aquatic domain.
Answer:
B,D,E,F
Explanation:
What gland is responsible for controlling the levels of water in the body?A. Nephron glandB. Pineal glandC. Thyroid glandD. Pituitary gland
In addition to promoting or discouraging the production of hormones in the pituitary gland, the hypothalamus secretes hormones that control blood pressure, appetite, sleep, temperature, and water balance. So, option D is the proper response.
Controlling vital biological functions and overall health depends on the pituitary gland, a tiny organ about the size of a pea. Because it regulates the activity of the majority of other glands that secrete hormones, it is known as the body's "master gland."
The anterior pituitary gland creates the hormones, which are then released into the bloodstream under the control of releasing or inhibiting signals from the hypothalamus and the level of circulatory hormones.
The posterior pituitary gland stores two hormones that are created by the hypothalamus before they are released into the bloodstream.
Which are:
Vasopressin, a hormone that regulates blood pressure and water balance, is an antidiuretic hormone.
Oxytocin promotes milk production during breastfeeding and uterine contractions during childbirth.
Therefore, conclude that option D is the correct choice.
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Based on the opinions of most researchers as represented by the Venn diagram, where would the character trait of personality fall within the influences of heredity and environment? (Site 1)
Answer: Using a Venn diagram, the character trait of personality belongs shared between heredity and environment, since it is influenced and shaped by both.
Explanation:
Hereditary and environmental factors (directly and indirectly) influence, shape, and change personality traits throughout a person's life in a number of ways. Our hereditary influences prior to adulthood include social classes, parental involvement, religion, social interactions, family presence and values, sibling relationships, education, role models, encouragement, punishment, and morals. After we mature as adults and begin our individual journey, our environments, and surroundings influence our experiences and imbue our personality with new perspectives and values. Those environmental factors may include office politics, colleague relationships, legal accountability, independence, financial responsibilities, personal survival, building a family, commitments, setting objectives, and meeting our own needs. Based on these various factors, we can conclude that personality traits are influenced equally by heredity and environment as we progress and mature throughout our life.
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Select 3 that apply.The purpose of placenta is to: Select all that apply.pass along oxygenfeed the growing embryoremove wastefeed the larvapass along nitrogen
The placenta is an organ developed in the uterus during pregnancy, it works as an endocrine gland, secreting hormones, and also provides oxygen, and nutrients to the baby.
In the bind point between the placenta and the uterus begins the umbilical cord.
also has a filter function that allows the movement of certain particles.
From the options given
• pass along oxygen --> ,is true
,• feed the growing embryo-->, is true
• remove waste -->, is true
,• feed the larva--> ,is false
,• pass along nitrogen--> ,is true, but mainly as nutrients.
The answer is to pass along oxygen, feed the growing embryo, and remove waste
What else should the second group of researchers measure to test its hypothesis?
OA.
the current levels of water in the river
•B.
the type of pollen in cores from a nondrought period
OC.
the composition of microscopic charcoal released during natural fires
OD.
the quantities of sediments in cores from the delta during a nondrought period
The type of pollen in cores from a nondrought period, the composition of microscopic charcoal released during natural fires, the quantities of sediments in cores from the delta during a nondrought period.
Thus option B, C, D are correct. These are the second group of test of hypothesis.
What comes next in the testing of a hypothesis?Probability value technique is the second strategy for testing hypotheses. The selection of the test size is the second step in this methodology. Calculating the test statistic and the probability value is the third step.
What are the two primary testing modalities?Each team uses manual testing occasionally because it is the most practical kind of testing. Test scripts and specialized tools are used in automated testing to automate the software testing process.
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