Please hurry!!!

How does the DNA change during meiosis?

Answers

Answer 1

Answer:

Scotland

Law is a surname, of English, Scottish, Cantonese, or Chinese origin. In Scotland, the surname means dweller at the low; as in a hill. Another origin of the surname is a contraction of Lawrence, or Lawson.

Explanation:

Answer 2

Answer:When recombination occurs during meiosis, the cell's homologous chromosomes line up extremely close to one another. Then, the DNA strand within each chromosome breaks in the exact same location, leaving two free ends. Each end then crosses over into the other chromosome and forms a connection called a chiasma.

Explanation: Np


Related Questions

In rabbits, black fur (B) is dominant to white fur (b) A purebred black furred male is bred with a female that had the recessive white fur

Answers

Answer:

BB x bb

Bb

Bb

Explanation: When a purebred dominant trait is bred with a purebred recessive trait then the offspring will always have the dominant and recessive trait.

HELP PLS!!! (PSYCHOLOGY) I'LL GIVE YOU BRAINLIEST IF UR RIGHT!!

Nate is a teacher who has been in the dassroom for 25 years. When a new teacher is hired, he offers to be a mentor because he loves helping new teachers get inspired about working with children. He wants to help make sure that the teaching profession remains high quality. How would Erikson MOST likely describe Nate's efforts?
A.) Nate is working en generativity.
B.) Nate is working on ego integrity.
C.) Nate is working on intimacy.
D). Nate is working on acceptance​

Answers

Answer:

A.) Nate is working on generativity

Explanation:

Generativity is the ability to provide care or concern for younger or older genrations. Nate offers to be the mentor because he loves helping the new teachers get inspired about working with children. According to Erik Erikson theory of psychosocial development, generativity can refer to "making your mark" or impact on the world through creating or nurturing things that will outlast in an individual/individuals.

PLEASE I BEG YOUUUU HELP

Answers

Answer:

C

Explanation:

PLEASE HELPPPP

What is the relationship between mutation, the cell cycle, and cancer? Select all statements that apply.
A Mutated genes typically allow cells to respond to checkpoint proteins that halt the cell cycle, thus avoiding formation of tumors.
B. As a result of unregulated cell cycles, cells may become cancerous, meaning that the cells grow and divide uncontrollably.
С
Cancerous cells may form malignant tumors that invade and destroy surrounding healthy tissue.
D. Mutated, defective genes may cause cells to become unable to respond to signals that regulate the cell cycle.

Answers

B and C and bother correct :)

A cluster of cases of legionellosis have occurred in your neighborhood. People with the illness have cough, fever, shortness of breath, chest pain and sometimes diarrhea. The illness is caused by the bacterium Legionella pneumophila, a facultative intracellular parasite that survives in certain ameba. The organism has an absolute requirement for L-cysteine. Typically, the organism is grown on buffered charcoal yeast extract (BCYE) agar. In some labs, samples containing suspected L. pneumophila are cultured on traditional BCYE medium as well as BCYE medium lacking L-cysteine. How would L. pneumohila be identified in this situation

Answers

Answer:

The correct answer is - comparing the presence of an essential component of the L. pneumophila that is cysteine.

Explanation:

As we know that L-cysteine is essential for the organism L. pneumophila to grow its colonies. The identification is easy in this situation by comparing the two cultured on the traditional BCYE medium and BCYE medicum without L-cysteine.

Colonies that grow on traditional BYCE medium are likely L. pneumophila as they required L-cysteine but not on BYCE medium lacking cysteine.

How did the crickets lose their ability to chirp?

Answers

Answer:

By a mutation that altered the shape of their wings, making them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.

Explanation:

Answer:

The change seems to have been caused by a mutation that altered the shape of their wings.

Explanation:

Makes them incapable of producing the chirping noise. The feat was achieved over less than 20 generations, a mere evolutionary blink of an eye, and, with the crickets living just a few weeks, a very rapid process.

how do data collected from ice cores provide evidence for climate change.

Answers

Answer:

Explanation:

Ice cores can tell scientists about temperature, precipitation, atmospheric composition, volcanic activity, and even wind patterns. The thickness of each layer allows scientists to determine how much snow fell in the area during a particular year.

A _____ is exhibited only when two are present together.


recessive allele

hybrid

purebred

dominant allele

Answers

Answer:

I believe it's a dominant allele

Explanation:

Recessive allele means one is present... A hybrid is the result of two different breeds breeding. A purebred is an organism that always passes down the same genetic makeup.

The structure of the plasma membrane is often explained using the "Fluid Mosaic Model". In this model, the term "fluid" best refers to which of the following?

Group of answer choices

all choices are correct

water can move through the plasma membrane

the plasma membrane is made of a liquid

the fact that the phospholipids and embedded structures are free to move

Answers

Answer:

ALL OF THE ABOVE

Explanation:

Water availability poses the single greatest limitation to plant life in deserts. The amount of moisture that is available for plants to
use is determined by the unique features of the soil. Which term describes the capacity of the soil to allow fluids to pass through it?
A)
texture
B)
composition
C)
particle size
D)
permeability
Frology Interactions of living

Answers

I might be incorrect, but from what I remember it should be particle size

What happens to the process of succession after a volcanic irruption?

Answers

Answer:

Lava from a volcanic eruption hardens into bare rock. Primary succession begins with soil formation. The first stage of succession involves pioneer species. In primary succession, pioneer plants are those that can grow without soil, such as lichens.

Hope it helps

Please mark me as the brainliest

Thank you

competition a type symbiotic relationship is where

Answers

Answer:

they r ecological, not symbiotic

Polymerase Chain Reaction (PCR) technology is used for

a. DNA identification
b. DNA repair
c. DNA amplification
d. DNA cleavage​

Answers

Answer:

The correct answer is c.

Explanation:

Polymerase Chain Reaction (PCR) technology is an in vitro enzymatic method that allows the amplification of a specific DNA sequence, that is, it is the DNA amplification technique by means of the polymerase chain reaction (PCR) is a technique that consists of the in vitro amplification of a specific DNA fragment. To carry out the amplification experiment, it is necessary to know, at least partially, the sequence of the fragment to be amplified (a gene, a part of a gene, a non-coding region, ...). Basically, it is about replicating the same DNA fragment over and over again and, for this, we must do in vitro what cells do in vivo to replicate their DNA. Generally, PCR begins with the denaturation or separation of the DNA double helix by heating the sample to a temperature between 94 and 96 ° C to break the hydrogen bonds that joined them, in this way each chain remains as a template for the synthesis of a new complementary strand of DNA.

I NEED HELP ON BOTH ANSWER AS QUICKLY AS POSSIBLE!!
Bc

Answers

Answer:

What do you need help with?

WILL GIVE BRAINLIEST.Read the passage. Seth sat at the piano, and I saw him take a deep breath. Sweat was dripping off of his brow, and his left hand was twitching slightly—the obvious result of nerves. He took another deep breath and slowly, painfully exhaled. Then, he gently placed his hands on the keys and his fingers began to move gracefully up and down the keyboard. What emerged was the most beautiful music I had ever heard. Why is this passage an observation? It tries to reflect the everyday lives of ordinary people. It describes an event the writer has witnessed. It reveals a deep truth about a character. It portrays the physical appearance of a person.

Answers

Answer:

2.

Explanation:

it describes an event the writer has witnessed

Assignment 1
-The cell is the smallest unit of life. All living things are made of cells.
A) What are the three principles of the cell theory? And explain each in details.
-Present-day mitochondria and chloroplasts probably evolved as a consequence of early endosymbiosis: the ancestor of the eukaryotic cell engulfed a bacterium, and the bacterium continued to function within the host cell.
B) What is the Endosymbiont theory? What is the evidence supporting this theory?

Answers

Answer:

buang si manoy kag ikaw ang abnoy

HELP!!!! FOR A TEMPLE GRANDIN ASSIGNMENT. WILL GIVE BRAINLY THING
how do you know which way a horse is looking?

Answers

Answer:

If its nose is facing you then it is looking to the left and the right.

Explanation:

A horses eyes are on the side of its head so where ever its nose is the eyes are lookng right and left. Hope this helps

Which spheres of Earth are directly influenced when human-caused air pollution leads to acid rain that dissolves limestone rocks?

atmosphere, cryosphere, geosphere
cryosphere, hydrosphere, biosphere
geosphere, atmosphere, hydrosphere
biosphere, atmosphere, cryosphere

Answers

Answer:

Atmosphere, Geosphere and Hydrosphere

Explanation:

The spheres of earth that get influenced by the human-caused air pollution which leads to acid rains that dissolves the limestone rocks are the atmosphere, geosphere, and the hydrosphere.

This is because the atmosphere contains polluted air which has the components of acid rain. The acid rains accumulate on the hydrosphere if not collected by the geosphere. The geosphere is the one that is drastically affected by the acid rains as the limestone rocks melt.

The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.

What is Acid rain?

This is because acid rain is caused by contaminated air, which is present in the atmosphere. If the geosphere does not catch the acid rains, they build on the hydrosphere. As the limestone rocks melt as a result of the acid rains, the geosphere is the one that is most severely impacted.

Any type of precipitation with high concentrations of nitric and sulfuric acids is referred to as acid rain.

Snow, fog, and minuscule pieces of dry material that fall to Earth can likewise represent it. Acid rain typically has a pH between 4.2 and 4.4, whereas normal rain has a slightly acidic pH of 5.6.

Therefore, The atmosphere, geosphere, and hydrosphere are the three spheres of the planet that are affected by human-caused air pollution, which causes acid rains to dissolve limestone rocks.

To learn more about Earth, refer to the link:

https://brainly.com/question/31064851

#SPJ7

What is one of the chief alms of water conservation?

Answers

Answer:

gdk

and got tooka killed Explanation:

The process of meiosis is essential in the sexual reproduction and life cycle of many organisms. The outcome of meiosis is haploid gametes. Which statements correctly describe the importance of meiosis to the life cycle or these organisms?
A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.
B) Taking a diploid cell to its haploid state occurs during the first cell division of meiosis.
C) Checkpoints during meiosis ensures that chromosome separation occurs accurately, avoiding non-disjunction.
D) DNA synthesis occurs before each cell division in meiosis ensures that the integrity of the chromosomes is maintained.
E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.

Answers

Answer:

E) Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization.

A) Increasing genetic diversity ensures that no two haploid gametes are exactly the same.

Explanation:

Meiosis is a kind of cell division that strictly occurs in sexually-reproducing organisms. It is the process whereby four daughter cells that are genetically different from their parents are produced. In meiosis, the chromosome number of each daughter cell (gamete) is reduced by half. As highlighted in this question, the meiotic process is essential in the sexual reproduction and life cycle of many organisms.

This importance is attributed to the fact that:

- Reducing the number of chromosomes by half during meiosis ensures the chromosome number is maintained during fertilization. That is, a diploid organism (2n) produces a haploid gamete (n), which becomes diploid again when fertilized by another gamete.

- Increasing genetic diversity ensures that no two haploid gametes are exactly the same. This occurs because of a process called CROSSING OVER, which enables that the alleles of each gamete is recombined to be different from one another in order to promote genetic diversity.

Answer:

A, B, C, E

Explanation:

i just did it

PLZ HELP ASAP
MARKING

Answers

Answer

hi, your answer is steel

Explanation:

because a skyscraper wouldn't stand well in bad weather as cardboard everything would eventually get wet. it couldn't be rubber, bc rubber would make it fall down a little. Plastic is strong, but eventually it wears away. so, steel is your answer

Which of the following is an example of olfactory sense?
Select one:
a. Salim predicted the lunch menu by touching the food
O b. Salim predict
the lunch menu just by the smell
of the food

c. Salim predicted the lunch menu by looking at the food
d d. None of these​

Answers

b. Salim predict

the lunch menu just by the smell

of the food

How do diet and weigh loss companies use bias to sell their products

Answers

Because they prolly think they would have lots of sake because of them

______refers to the ability to cause change or do work.
A.friction
B.energy
C.gravity
D.distance

Answers

Answer:

B

Explanation:

Ive studied rhis before

You have been studying two Hippogriff traits as a senior graduation project at Hogwarts (because you are magical), beak size (big beaks, B, are dominant to small beaks, b) and feather color (brown feathers, F, are dominant to white feathers, f). You mate two brown, big-beaked Hippogriffs and obtain the following results: 15 of the baby Griffs are brown and big-beaked; 4 of the baby Griffs are white are big-beaked; and 1 of the baby Griffs is white and small-beaked. What are the genotypes of the parent Hippogriffs

Answers

Answer:

BbFf is the genotype of parent Hippogriffs

Explanation:

Given -

Big beaks, B, are dominant to small beaks, b.

Brown feathers, F, are dominant to white feathers, f.

Two brown, big-beaked Hippogriffs are mated to produce 15 brown and big-beaked; 4  white and big-beaked; and 1  white and small-beaked offspring

The genotype of parents is BbFf

What does the term "feedback inhibition” describe?

Answers

Answer:

Feedback inhibition, in enzymology, suppression of the activity of an enzyme, participating in a sequence of reactions by which a substance is synthesized, by a product of that sequence.

Plastics like PVC pipe and Teflon used to make non-stick cooking trays are made by bonding large chains of carbon molecules to other molecules; disrupting Earth's natural cycles. How is the use of plastics disrupting nature? A) Production uses 10% of Earth's energy. B) Animals/Fish can not digest the enzymes. C) Landfill's leak harmful chemicals into the atmosphere. D) Floating plastic waste serves as transportation devices for invasive species, disrupting habitats.

Answers

B) Animals/Fish can not digest the enzymes.

PLZ HELP ME ASAP


Read the article above and answer the following questions


1. The cardiovascular system includes:

A. the heart

B. blood

C. blood vessels

D. all of the above


2. Which of the following is NOT carried through the body by blood?

A. valves

B. carbon dioxide

C. nutrients

D. oxygen


3. Which of the following carries blood out of the heart?

A. arteries

B. veins

C. blood vessels

D. tubes


4. Which of the following is NOT a part of blood?

A. red blood cells

B. white blood cells

C. gorta

D. plasma


5. What is the heart largely composed of?

A. plasma

B. platelets

C. muscle

D. both B and C

Answers

all of the above  cause the cardiovacular system help you move your blood

Answer:

1. all above

2. valves

3. arteries

4. gorta

5. muscle

Explanation:

Please help me!

Explain how some structures in the skin protect your body.

Answers

The primary function of the skin is to act as a barrier. The skin provides protection from: mechanical impacts and pressure, variations in temperature, micro-organisms, radiation and chemicals.

why doesn't the periosteum cover the articular cartilage of a long bone

Answers

The periosteum doesn't cover the portion of bones that contains articular cartilage, which is the cartilage found in joints that keeps the bones from rubbing together. It is not as tightly packed and contains cells that help in bone growth and repair.

The periosteum does not cover the articular cartilage of a long bone because it is not located in the part of the bone where the joint is formed.

The main function of articular cartilage is to facilitate the movement of a joint in any mechanical circumstance.

The periosteum is a membrane that is part of the constitution of the bones, and that is located throughout the entire bone body, with the exception of the area that is destined for the articular surface.

It is found throughout the central part of the bone, that is, it passes through the entire diaphysis and reaches the metaphysis.

It disappears in the epiphysis because it is the area that generates contact with the tissues that make up the joints, necessary for movement.

Therefore, we can conclude that the periosteum is a membrane that covers all the bones, except the area that is destined for the articular surface.

Learn more about the periosteum here: https://brainly.com/question/12847671

Other Questions
Pls help its due in a hour!! Use Your Art SkillsDraw a picture of something that is in motion. On your picture, label all of the forces that are acting onthe object. Include a description of how each of Newton's Laws are affecting the moving object. Take apicture of your drawing Make sure your picture is clear! What volume will 3.50 mol of ammonia gas occupy at conditions of standard temperature and pressure? how much feet is in a mile which of the following are magnitudes for rotational symmetry of the hexagon hexagon below about the marked point? Molly attends college and works part-time job as a telemarketer. She can work up to 40 hours each week at her job, which pays $8 per hour. The table below shows her utility from different levels of leisure and income. Molly is currently working 20 hours per week. If she decides to work 30 hours instead, then her marginal utility loss from having less leisure is: Select the equivalent expression that shows the fewest possible terms. Some help me its timed Maps are especially useful for showing aspects of the world that cannot be seen directly. These include Which statement best describes the relationship between genes and disease?A. There is never a relationship between genes and disease.B. Only missing genes lead to disease.C. Some diseases are caused by mutated genes.D. All diseases are caused by mutated genes, Name three thing that made the roman military so tough Q3. Which choice correctly punctuates and capitalizes (if needed) thewords in the following sentence? in addition to putting your name on yourpaper please add the date. *O In addition to putting your name on your paper please add the DateIn addition to putting your Name on your paper please add the date.In addition to putting your name on your paper, please add the date.O in addition to putting your name on your paper, please add the date. Write an exponential growth model for each situation.1. initial value: 2,000growth rate: 6%2. initial value: 50growth rate: 75%3. initial value: 40growth rate: 100% Store A sells boxes of rice for $2.50 each.Store B sells rice by the pound for $2.50 per pound.The cost of an amount of rice at either store can be modeled by the function c(n) = 2.5n, where n is the number of boxes for Store A and n is the number of pounds of rice for Store B.The domain of c(n) = 2.5n is all the real numbers.For each store, drag the restriction needed on values of n for c(n) to model each situation. All of Ameliorate Inc.'s sales are on account. 60% of the credit sales are collected in the month of sale, 30% in the month following sale, and 10% in the second month following sale. The following are budgeted sales data for the company: January February March April Total sales $700,000 $500,000 $400,000 $600,000 Cash receipts in April are expected to be: Plant growth is the result of cells dividing during _____.plss help The curve formed by a quadratic equation is called a...? What is 21 dimes to go 30 dimes 2. Which of the following is associated with a lack of competition in the marketplace? -3 (4b + 7) > 3. Plz help I have 5 mins For you what is art?