Practice question
Question
In human pointed eyebrows are dominant to smooth eyebrows and widow’s peak (downward pointed frontal hairline) is dominant to continuous hairline. What phenotypic ratio would you expect in the offspring from a cross between an individual heterozygous for both genes and an individual homozygous recessive for both genes?
Explanation
The principle of quantitative reasoning explains that ratio, percentage and series logic determine correct calculation. Hence 1:1:1:1 fits best because it meets mathematical and logical criteria, as documented in authoritative sources on aptitude and reasoning.
Discussion
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