The recessive genes located on X-chromosome in humans are always
The recessive genes located on X-chromosome in humans are always
A. lethal
B. sublethal
C. expressed in males
D. expressed in females
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Correct Answer - C
The recessive genes located on X-chromosome in humans are always expressed in males because a female may be homozygous or heterozygous while male is always hemizygous (i.e. only allele is present). Haemophilia, colour blindness are some human diseases which are frequently found in males.
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