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KVPY Sample Paper KVPY Stream-SX Model Paper-1

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

    A) Homozygous sex chromosomes (ZZ) determine female sex in birds.

    B) XO type of sex chromosomes determine male sex in grasshopper.

    C) XO condition in human is found in Turner syndrome, determines female sex.

    D) Homozygous sex chromosomes (XX) produce male in Drosophila.

    Correct Answer: B

    Solution :

    [b] 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.


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