Chromosome 1 has the most genes and chromosome Y has the fewest.
Chromosome 21 has the most genes and chromosome Y has the fewest.
Less than 2 percent of the genome codes for proteins.
The functions of over 50 percent of discovered genes are unknown.
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The Correct Option isB
Solution and Explanation
Chromosome 1 contains the most genes, whereas chromosome Y has the fewest. Chromosome 21 has one of the fewest gene counts among human chromosomes. The statement that chromosome 21 has the most genes is incorrect.