Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The human chromosome with the highest and least number of genes in them are respectively:

• A. Chromosome X and Y
• B. Chromosome 1 and Y
• C. Chromosome 1 and X
• D. Chromosome 21 and Y

Answer 1

The correct option is B Chromosome 1 and Y

Chromosome 1:

Chromosome 1 is the largest human chromosome with the maximum number of genes, that is, 2968 genes. It is the last chromosome that was sequenced in HGP in 2006.


Chromosome Y:

Chromosome Y has the least number of genes in human chromosomes, that is 231.


Final answer: c. Chromosome 1 and Y