Red green colour blindness appears due to
Excessive drinking of alcohol
Inheritance through $X$ chromosome
Over activity of adrenal
Vitamin $A$ deficiency
It's Obvious
Most studies on human genetics have been made through
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
Haemophilia, a $X$-linked recessive disease is caused due to deficiency of
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness ?
Represented below is the inheritance pattern of a certain type of trait in humans. Which one of the following conditions could be an example of this pattern?
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