Question

Which of the following conditions correctly describes the manner of determining the sex in the given example?

• A. $XO$ type of sex determines male sex in grasshopper
• B. $XO$ condition in humans as found in Klinefelter's syndrome determines female sex
• C. Homozygous sex chromosome $XX$ produce male in Drosophila
• D. Homozygous sex chromosome $ZZ$ determine female sex in birds

Answer 1

The correct option is A $XO$ type of sex determines male sex in grasshopper

• The sex determination can be described through XO type of sex determines male sex in grasshopper.
• A sex-determination system is a biological system that determines the development of sexual characteristics in an organism.
• In XO type of sex determination, the female produces two gametes with X chromosomes while the male produces gametes with X chromosomes and gamete with no sex chromosomes.
• The gamete with X and without sex chromosome fuses to form male Drosophila.
• Thus, the correct answer is option A.