Select the incorrect pair
Henking - $X$ body
Morgan - Linkage and recombination
Sutton - Chromosomal theory of Inheritance
Alferd sturtevant - Law of segregation
Delete the odd one:
Heterogametic male condition does not occur in
Assertion : In humans, the gamete contributed by the male determines whether the child produced will be male or female.
Reason : Sex in humans is a polygenic trait depending upon a cumulative effect of some genes on $X-$ chromosome and some on $Y-$ chromosome.
Which one of the following conditions correctly describes the manner of determining the sex?
Bird females have chromosome arrangement as