1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
3 years ago
14

In the beginning of prophase the DNA coils back up and​

Biology
2 answers:
Nataly [62]3 years ago
8 0

Answer:

Explanation:

When prophase is complete, the cell enters prometaphase — the second stage of mitosis. During prometaphase, phosphorylation of nuclear lamins by M-CDK causes the nuclear membrane to break down into numerous small vesicles. As a result, the spindle microtubules now have direct access to the genetic material of the cell.

Each microtubule is highly dynamic, growing outward from the centrosome and collapsing backward as it tries to locate a chromosome. Eventually, the microtubules find their targets and connect to each chromosome at its kinetochore, a complex of proteins positioned at the centromere. The actual number of microtubules that attach to a kinetochore varies between species, but at least one microtubule from each pole attaches to the kinetochore of each chromosome. A tug-of-war then ensues as the chromosomes move back and forth toward the two poles.

Oksi-84 [34.3K]3 years ago
5 0

Answer:

Cells duplicate and condense their DNA prior to entering mitosis. ... Early microscopists were the first to observe these structures, and they also noted the ... forms of chromosomes leading up to and during cytokinesis, the ultimate division of one ... condensin forms rings that coil the chromosomes into highly compact forms.

Explanation:

You might be interested in
The organelle that is involved in cellular respiration and is linked to development of?
Andreyy89

Mitochondria is the organelle which is involved in cellular respiration and that is linked to development. The primary function is to perform cellular respiration.

Mitrochondria which is also known as powerhouse of the cell Because 32 ATP are created from this organelles. It is produced energy in the form of ATP when cell respire.Oxygen and glucose both are the reactants in the process of cellular respiration.

The major product of cellular respiration is ATP which is  waste products include carbon dioxide and water.Cellular respiration takes place in mitochondria, which are often called the cell's "powerhouses" because they make maximume no of a cell's ATP. Glycolysis splits glucose into two three-carbon molecules and makes two molecules of ATP.

To learn more about Mitochondria here

brainly.com/question/10688306

#SPJ4

6 0
1 year ago
Which process is a common practice that has been used by farmers for hundreds of years to develop new varieties of plants and an
DochEvi [55]

Answer: Farmers use selective breeding for desirable traits. This is considered a type of genetic manipulation.

Explanation:

3 0
3 years ago
SCIENCE HELP
Maurinko [17]
Question 1) Photesphere 
Question 2) core
Question 3) The suns gravity keeps them in place
Question 4) True
I'm not 100% about question 1 it's either photesphere or core, but I think Photesphere is correct
 

8 0
3 years ago
Cystic fibrosis is a deadly disease of the lungs and digestive system. It is inherited as a recessive trait. How can two healthy
Ivanshal [37]
We'll make the alleles: Cc.

C is a healthy parent, and c is the cystic fibrosis (recessive).

If you make a punnett square and the parents are both Cc (healthy), then you would get CC, Cc, Cc, and cc. That cc is a 25% chance that the offspring will have that, which means there is a 25% chance the child will have cystic fibrosis.

Two healthy parents can have a child with cystic fibrosis if both the parents have the dominant allele and recessive allele, if both the parents have heterozygous alleles.
3 0
2 years ago
Read 2 more answers
Which is produced when an egg and a sperm unite during a plant’s life cycle?
andrey2020 [161]

Explanation:

gametophyte

6 0
2 years ago
Other questions:
  • How do enzymes play a role in living things, and what affects their function?
    13·1 answer
  • A farmer is being troubled by coyotes eating his sheep. in an attempt to solve the problem, he kills a sheep and laces its body
    5·1 answer
  • A scientist observes a cell under a microscope and notices that the cell’s cytoplasm is almost completely full of rough endoplas
    7·1 answer
  • What type of reproduction produces fungi that are different from either parent?
    7·2 answers
  • The curve on the left shows the height of a population of penguins. The curve on the right shows the population five years later
    6·2 answers
  • Stalagmites ares structures found in caves. They grow very slowly over time.
    6·1 answer
  • Which of the following is an irrational number?
    5·1 answer
  • Why are monarch butterflies poisonous?
    9·2 answers
  • How do the oxygen and nutrient levels in the adult vena cava compare to those levels in the fetal vena cava?
    9·1 answer
  • Which of the following is likely to increase in livestock as the ozone layer is increasingly depleted?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!