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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:

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You are looking through a microscope at a cell in a phase of cell division. you see a double row of chromosomes lined up at the
aev [14]
The cell is in METAPHASE PHASE OF MEIOSIS.  At this phase, the pairs of homologous chromosomes moves to the cell equator. These pairs of homologous chromosomes will be separated in anaphase I. The number of chromosomes remains constant until the first cell division is completed, then the chromosomes will be divided into two daughter cells. 
6 0
3 years ago
How many calories are in an average trick-or-treaters halloween stash?
Vera_Pavlovna [14]

The number of calories on a Halloween stash depends on the type of candies and the number of units of each. If the stash contains 5 units of each of these candies: chocolate bars, taffies, lollypops, and candy corn the total number of calories is 1,650.

Calories are the most common unit used to define the energy a specific food gives to your body. For example, an apple has 52 calories, while a banana has 89 calories.

Considering this, in a Halloween stash the calories depend on two factors:

  • The types of candies or products
  • The units of each one

Let's suppose there are 5 units of each of the following candies:

  • Chocolate bars
  • Taffies
  • Lollypops
  • Candy corn

Let's now calculate the calories

  • Chocolate bars = 220 calories x 5 units =  1,100 calories
  • Taffies = 20 calories x 5 units = 100 calories
  • Lollypops = 83 calories x 5 units = 415 calories
  • Candy corn = 7 calories x 5 = 35 calories

Add all the previous results:

1,100 + 100 + 415 + 35 = 1,650 calories in total

Learn more in brainly.com/question/22374134

8 0
3 years ago
When an animal cell goes through the process of mitosis, it divides into two smaller cells.
Marina86 [1]

Answer:

c

Explanation:

5 0
2 years ago
Read 2 more answers
Am I skinny fat or just skinny
exis [7]

Answer:

fat

Explanation:

5 0
3 years ago
Read 2 more answers
Which type of organisms make up the base of every food chain?
lord [1]
The answer is Primary producers.

This is a sample of a food chain:

Quaternary Consumer > Tertiary Consumer > Secondary Consumer > Primary Consumer > Primary Producer (base)

Hope this helps.
3 0
3 years ago
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