Sawaal
1
Q:

Which best describes a gene?

A) a segment of chromosomal DNA B) tightly coiled strands of DNA
C) different allele forms of a trait D) None of the above

Answer:   A) a segment of chromosomal DNA



Explanation:

Gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism.

In short it is a piece or segment of chromosome.

 

Genes undergo mutation when their DNA sequence changes. 

Subject: Biology
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