Question

Which of the following is true regarding eukaryotic chromosomes?
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Each chromosome consists of two identical chromatids.

(Choice B)
B
Chromosomes are made of RNA and protein.

(Choice C)
C
A section of chromosomes that codes for a trait is a homolog.

(Choice D)
D
When cells are not dividing, chromosomes are highly condensed.

Answer 1

Answer:

A

Explanation:

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Answer 2

Each of the chromosome comprises two identical chromatids.  

• The chromosomes in eukaryotes comprises DNA, which is tightly wrapped around the clusters of histone proteins.  

• Chromosomes are tightly condensed at the time of lining up in metaphase and in telophase when dividing to maintain the molecules of DNA in intact form.  

• A gene inherited in two species by a common ancestor is known as a homolog or homologous gene.  

• After the replication of DNA, the chromosome comprises two similar compositions known as sister chromatids that are attached together with the help of the centromere.

Thus, correct answer is option A.

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