Q.

Genes, the hereditary units, are located in the –

A. nuclear membrane
B. chromosomes
C. lysosomes
D. cell membrane
Answer» B. chromosomes
Explanation: A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomal DNA encodes most or all of an organism's genetic information; some species also contain plasrnids or other extra- chromosomal genetic elements.
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