A) Sex determination - a chromosomal phenomenon
B) Y chromosome - autosomal
C) Red green colour blindness in human - a sex linked character
D) An abnormal chromosome number in each cell - a case of polyploidy
Correct Answer: B
Solution :
Chromosomes are of two type autosomes and sex chromosomes (allosomes). In human being, 23 pairs of chromosomes are present in which 22 pairs are autosomes and 1 pair is sex chromosomes-X and Y-chromosojnes.
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