A) They face more mental stress
B) They pass more time from out of the home
C) They have only one X chromosome
D) They generally have less fat
Correct Answer: C
Solution :
In colour blindness, a person is unable to discriminate between red and green colours. Colour blindness is X-linked inheritance, X linked genes are present on the portion of the X- chromosome for which there is no homologous region on the Y- chromosome. This disease is caused by recessive alleles located on X- chromosome. Most of the males (XY- Sex chromosomes) suffer from this disorder and females (XX-Sex chromosome) p-re rarely affected. Females are only carrier of this disease.
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