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11Alexandr11 [23.1K]
3 years ago
11

Describe how DNA is coiled and eventually supercoiled to condense it into chromosomes.

Biology
1 answer:
Solnce55 [7]3 years ago
8 0

Double-stranded DNA loops around 8 histones twice, forming the nucleosome, which is the building block of chromatin packaging. DNA can be further packaged by forming coils of nucleosomes, called chromatin fibers. These fibers are condensed into chromosomes during mitosis, or the process of cell division.

Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

During DNA packaging, long pieces of double-stranded DNA are tightly looped, coiled, super coiled, and folded so that they fit easily within the cell.  This highly compacted DNA is then arranged into structures called chromosomes.


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The number of chromosomes in the cells made by meiosis are?
Alexus [3.1K]

Answer: 46 chromosomes

Explanation: Germ cells contain a complete set of 46 chromosomes (23 maternal chromosomes and 23 paternal chromosomes). By the end of meiosis, the resulting reproductive cells, or gametes, each have 23 genetically unique chromosomes. The overall process of meiosis produces four daughter cells from one single parent cell.

3 0
3 years ago
In the word "claustrophobic" phob is the_____.
snow_tiger [21]

Correct answer: A). Root

The part of the word that can not be broken down is called root word. In the word claustrophobic ''phob'' is the root word. It can not be suffix as a suffix are added after the root word. It cannot be prefixed as it is added before the root word. Here the prefix would be ''claustro'' and suffix would be ''ic''. It cannot be affixed as it contains both suffix and prefix.

Hence, the correct answer would be option A.


8 0
3 years ago
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PLEASE HELP ME I'M BEING TIMED I WILL DOUBLE THE POINT
jekas [21]

Answer:

The correct answer is - Honeycreepers arose from a single species that migrated to Hawaii and adapted to different niches over time.

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It is believed to be a single species of honeycreeper who migrated from the mainland to Hawaiin island and adapted to different niches over time by the process known as natural selection.

7 0
2 years ago
What is a classification division
Inga [223]

Answer:

see the explanation

Explanation:

A classification or division essay groups objects, people, or events into categories by the characteristics that they share. Usually the writer begins with a group of people or things and then separates them into subgroups or types. There are a several steps to writing an effective division or classification essay.

6 0
3 years ago
Polyploidy in plants can lead to
sp2606 [1]

Answer:

E

Explanation:

I think bcuz arises as the result of total nondisjunction of chromosomes during mitosis or meiosi

3 0
3 years ago
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