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    ​Which one of the following statements regarding seasonality and sex in aphids is INCORRECT?​
    Question

    Which one of the following statements regarding seasonality and sex in aphids is INCORRECT?

    A.

    An egg hatched in the spring gives rise to several generations of parthenogenetically reproducing females.

    B.

    During autumn, a particular type of female is produced whose eggs can give rise to only asexual males.

    C.

    After winter, when eggs hatch, one gives rise to an asexual female.

    D.

    The juvenile hormone controls the parthenogenetic/sexual switch and also inhibits the formation of wings.

    Correct option is B

    The correct answer is (b).
    This statement is incorrect because, in autumn, aphids produce sexual females that give rise to both sexual males and females. Asexual males are not produced; instead, sexual reproduction is initiated.
    Incorrect options-
    Option (a) is correct because spring-hatched eggs do produce multiple generations of parthenogenetic females.
    Option (c) is correct because after winter, eggs hatch to give rise to asexual females, not males.
    Option (d) is correct as juvenile hormone does control the reproductive switch and inhibits wing formation during parthenogenetic phases​

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