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    NEET Zoology Mock Test 2026: Zoology Practice Set & Preparation Tips

    Sex Determination in Drosophila MCQ - Practice Questions with Answers

    Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

    Quick Facts

    • Sex Determination in Drosophila is considered one of the most asked concept.

    • 16 Questions around this concept.

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    How many chromosomes does Drosophila have?

    Concepts Covered - 1

    Sex Determination in Drosophila
    • Sex in Drosophila is determined by genic balance mechanism.
    • Drosophila has eight chromosomes, in which six are autosomes and are common to both males and females.
    • The fourth pair is of sex chromosomes. In males, these are represented by XY and in females as XX.
    • Genic balance theory, proposed by Calvin Bridges states that sex is determined by the genic balance or ration between X-chromosome and autosome (X:A).

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    Sex Determination in Drosophila

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