Question

Sex determination ratio in an organism is given by $\frac{X}{A}=1.5$ then organism will be

• A. male
• B. female
• C. super female
• D. intersex

Answer 1

Answer: (C)

According to the Genic balance theory of sex determination given by Bridges, ratio between the number of $X$-chromosomes and number of complete sets of autosomes will determine the sex. According to this theory, if the $X/A$ ratio is $1.5$ then organism will be superfemale.