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2 years ago

What is a chromosome?

Biology

2 answers:

PIT_PIT [208]2 years ago

6 0

Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Explanation:

Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus. DNA is coiled around proteins called histones, which provide the structural support. Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.

Aneli [31]2 years ago

6 0

Answer: A chromosome is a thread-like structure made up of DNA. Chromosomes are found in the nucleus of each cell

or just DNA makes up a chromosome

Explanation:

hope this help

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Apart from muscle contraction, what other types of activities has your body done that requires energy

elena-s [515]

Answer:

To carry out life processes like breathing, respiration, digestion, excretion etc.

Explanation:

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3 years ago

Which of the following statements is true about solar eclipses? There is a solar eclipse every month. All solar eclipses are tot

d1i1m1o1n [39]

Some solar eclipses are not total. Hope this helps

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4 years ago

According to the pie chart, which cause results in the most extinctions?

Sophie [7]

<h3><u>Answer;</u></h3>

B.introduced species

<h3><u>Explanation;</u></h3>

<em><u>Animals become extinct for a number of reasons. Currently many animals are endangered or have become extinct due to human activities or human influence.</u></em>
Extinctions may be caused by reasons;<em><u> such as pollution; loss of habitat due to human activities such as agriculture, introduced species, hunting and poaching for meat and other animal products such as feathers, horns and skins, and also over-harvesting among other influences.</u></em>
In this question; <em><u>Introduced species occupies the largest percentage, that is 39%, from the pie chart (Attached).</u></em>
Hunting and poaching; 23 %, Habitat loss; 26%, and Others; 2%.

8 0

3 years ago

Read 2 more answers

A plant _____ is a reproductive cell that can develop into a gametophyte.

trasher [3.6K]

Spore, hope this helps!

5 0

3 years ago

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Which of the following describes how background research helps in the

solong [7]

D. It provides information about the subject of an experiment.

Background research is research prior to conducting an experiment.

Explanation:

Background research is important so as to fully understand the variables that are being controlled and tested in an experiment, and their relationships that will give insights into how to design the experiment. The background research is also important in identifying the research problem setting up of a good hypothesis.Background research also reduces the rate of failure of an experiment due to proper preparation.

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3 years ago