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swat32
2 years ago
10

What are chromosomes?

Biology
2 answers:
Iteru [2.4K]2 years ago
6 0

Chromosomes : are rod-shaped structures made of DNA and proteins , they will be tightened before cell division .

A chromosome is composed of a long thin molecule of DNA and many proteins attached to it ( proteins can be histone or non histone ).

HOPE IT HELPS

PLEASE GIVE BRAINLIEST

Shtirlitz [24]2 years ago
4 0

Chromosomes are structures found in the center (nucleus) of cells that carry long pieces of DNA. DNA is the material that holds genes. It is the building block of the human body. Chromosomes also contain proteins that help DNA exist in the proper form.

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Kelley used to do three sets of squats one time per week. after three weeks she noticed she was less sore than when she started
Lemur [1.5K]

The principle underlying this change is called progression. This principle tells us that when your fitness level improves, your body has adjusted to your regular routine; thus, you will feel less sore than when you started the squats three weeks ago. During this time, your muscles have developed<span> and your body has adopted to the stress brought about by your exercise. </span>

3 0
3 years ago
Suppose that a certain gene functions to enforce a checkpoint on the cell cycle. A mutation causing the loss of this gene's func
chubhunter [2.5K]

Answer:

The correct answer is C. be more likely to have cancer at some point in his/her life.

Explanation:

Cell cycle checkpoints are controlled by different proteins which are coded by different genes. They are important in cell cycle regulation and stops cell cycle immediately if they find any problem in the cell like mutation.

The cell cycle will not be continued if the problem does not solve and cell death will occur which prevents cancer by preventing the mutation to spread into new cells.  

Therefore if a mutation occurs in certain genes that enforce a checkpoint on the cell cycle then the mutated gene will pass in new cells and the mutated cells will grow uncontrollably due to no checkpoints so the person will probably have cancer at some point in his or her life.

7 0
3 years ago
How has pliable whale bone been used over the centuries?
stira [4]

Answer:

Many of the baleen eyeglass frames seen in advanced collections probably date from the late 17th to the very early 19th century. ... Whalebone is easy to carve and shape since it has a pliable almost plastic-like property. As such it was used in various manufacturing industries as a forerunner of plastic.

Explanation:

hope this helps :)

have a great day

8 0
3 years ago
"S PRACTICE Exam#1 68Qs.doc
Yuliya22 [10]

Your Answer will be D. <u>Monocytes</u>

\frak{hope \: it \: helps \: you.....}

5 0
3 years ago
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How can you identify a fibrous root system?
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<span>There is no primary root. Innumerable thin roots of similar size are present.</span>
8 0
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