A) Calvin B. Bridges
B) Strasburger
C) T.H. Morgan
D) Waldeyer
Correct Answer: A
Solution :
Balance theory of sex determination was proposed by Calvin B. Bridges. According to this theory, ratio between the number of X chromosomes and number of complete sets of autosomes will determine the sex hence, if \[\frac{X}{A}=1.0\xrightarrow[{}]{{}}\]Female \[\frac{X}{A}=0.50\xrightarrow[{}]{{}}\]Male \[\frac{X}{A}=0.50\xrightarrow[{}]{{}}\]Super male \[\frac{X}{A}=0.33\xrightarrow[{}]{{}}\]Super male \[\frac{X}{A}=1.50\,or\,1.33\xrightarrow[{}]{{}}\]Super female \[\frac{X}{A}=0.67\,or\,0.75\xrightarrow[{}]{{}}\]Intersex.
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