A) genie balance
B) oxygen balance
C) biodiversity
D) uniformity
Correct Answer: A
Solution :
Super male and super female type determination of sex in Drosophila is based on 'Genie balance theory'. This theory was proposed by CB Bridges (1922). According to him, it is the delicate balance theory between the X-chromosomes and autosomes, which responsible for sex determination, ie, by the X/A ratio.| Sex of individuals | X/A ratio |
| Super females | 1.5 |
| Normal females | 1 |
| Intersex | 0.67 |
| Normal males | 0.5 |
| Supermales | 0.33 |
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