A) Bridges
B) Balbiani
C) Gold Schmidt
D) Mendel
Correct Answer: A
Solution :
Chromosome theory of sex determination was propounded by Bridges. The experiments of Bridges on non-disjunction of X-chromosomes provided that a diploid set of autosomes with two X-chromosomes will always give rise , to a female individual irrespective of whether the two X-chromosomes will came from same parent or from different parents.
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