What are the chances of daughter having colour blindness if both of her mother (XCXC) and father (XCY) are colour blind?
a) 25%
b) 50%
c) 75%
d) 100%
Explanation: all the daughters will be colour blind (XCXC) because she will receive both the mutant alleles from her parents
Those traits which are related with maleness or femaleness are called………
a) sex related traits
b) sex limited traits
c) sex influenced traits
d) none of these
Explanation: emophilia, red-green color blindness, congenital night blindness, some high blood pressure genes, Duchenne muscular dystrophy, and also Fragile X syndrome.
Sex related traits are controlled by……
a) sex linked genes
b) autosomal genes
c) both a and b
d) none of these
Explanation: these traits are necessarily being sex linked
Those traits which are confined to only one sex due to anatomical differences…
a) sex related traits
b) sex limited traits
c) sex influenced traits
d) none of these
Explanation: For example, only males can have prostate cancer and only females can have ovarian cancer,
Those traits which occur in both sex male and females but are more common in one sex are called………
a) sex related traits
b) sex limited traits
c) sex influenced traits
d) none of these
Which of the following traits are controlled by an allele that is expressed as dominant in one but recessive in the other?
a) sex related traits
b) sex limited traits
c) sex influenced traits
d) none of these
Explanation: this difference in expression is due to hormonal difference between the sexes
