Which one of the following conditions correctly discribes the manner

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

Options

(a) Homozygous sex chromosomes (ZZ) determine female sex in birds
(b) XO type of sex chromosomes determine male sex in grasshopper
(c) XO conditions in human as found in Turner syndrome, determines female sex
(d) Homozygous sex chromosomes (XX) produce male in Drosphila

Correct Answer:

XO type of sex chromosomes determine male sex in grasshopper

Explanation:

In grasshopper the males lack a Y-sex chromosome and have only an X-chromosome. They produce sperm cells that contain either an X chromosome or no sex chromosome , which is designated as O.

admin:

Related Questions

  1. F₂ generation in a Mendelian cross showed that both genotypic and phenotypic ratios
  2. Which are smallest cell organelles
  3. What was the most significant trend in evolution of modern man (Homo sapiens)
  4. Which of the following events is not associated with ovulation in human female?
  5. The enzyme recombinase is required at which stage of meiosis: