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mixas84 [53]
3 years ago
10

2 points

Biology
1 answer:
Vilka [71]3 years ago
6 0

Answer:

true

true

Explanation:

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Based on the picture below, answer the following T/F questions. Explain your answer. a. The two chromosomes on the left (#1) are
STatiana [176]

Answer:

a) False.

b) True.

c) False.

d) True.

e) False.

f) True

g) True.

Explanation:

a) The main characteristic of homologous chromosomes is that they have an equal size. There is a difference in size on both chromosomes.

b) In number one, two chromosomes are homologous. In number two also two chromosomes are homologous. On the other hand, the chromosomes at number one and two are different. Each chromosome has two sister chromatids.

c) A DNA molecule has a double helix, that is, two chains. When a DNA chain is broken and a chromatide has a DNA chain, then two chromatids make up a chromosome and a DNA chain, in this way there are eight dsDNA molecules

d) If each chromosome contains a centromere, therefore, there are four centromeres on all four chromosomes.

e) If a chromosome contains four telomeres, therefore there will be sixteen telomeres.

f) The function of cohesin is to regulate the separation of chromatids in the cell division process. When DNA replication is complete, the DNA compacts and condenses to form mitotic chromosomes.

g) The CENPA protein is encoded by the CENPA gene.

4 0
3 years ago
What is the sugar found in DNA that makes up the sugar-phosphate backbone of the double helix?
Georgia [21]

Answer:

deoxyribose

Explanation:

A phosphate backbone is the portion of the DNA double helix that provides structural support to the molecule. DNA consists of two strands that wind around each other like a twisted ladder. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.

I hope that this helped you ;)

8 0
3 years ago
1. Where are stem cells located?
hjlf

Answer:

bone marrow

Explanation:

These are the blood cell-forming adult stem cells found in bone marrow. Every type of blood cell in the bone marrow starts as a stem cell. Stem cells are immature cells that are able to make other blood cells that mature and function as needed. These cells are used in procedures such as bone marrow transplants.

8 0
3 years ago
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A molecule of one atom of carbon and two atoms of oxygen would be written
Setler [38]
Hey, how are you doing?

The answer to your question would be: CO_{2} i believe. 
Hope this helps, and if you need further help, contact me!

Thank you,
Darian D. 
7 0
3 years ago
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A farmer grows beans that he sells to local markets. Over a period of 40
gavmur [86]

Answer:

Selective breeding

Explanation:

3 0
3 years ago
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