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6. What is a chromosome?

a. A small piece of cell membrane
b. A pair of DNA molecules
c. The protein center of a cell
d. Part of the cell's endoplasmic reticulum

User TobiMarg
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1 Answer

13 votes

Answer:

The answer is B.

Step-by-step explanation:

Chromosome is the thread of DNA that is found in nucleus and they are always in a pair.

User Anroche
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