The theory where ratio between the number of X chromosomes and number of complete sets of autosomes will determine the sex is known as
A
Chromosome theory of sex determination
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B
Genic balance theory of sex determination
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C
Hormonal balance theory of sex determination
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D
Environmental sex determination
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Solution
The correct option is B Genic balance theory of sex determination According to genic balance theory of sex determination, the ratio of X chromosome to total number of sets of autosomes determines the sex in fruit fly.