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Home 포럼안내 BMAT 시험 BMAT - 문제풀이 및 토론 BMAT 2020 Section 2 Q1

  • BMAT 2020 Section 2 Q1

  • Nicolas Sanchez

    2021/6월/토 at 7:03 오전
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    Which two of the following statements about genetic variation are correct?

    1 Asexual reproduction always produces genetic variation.
    2 Gamete production is the only possible source of genetic variation in sexual reproduction.

    3 The environment can cause genetic variation.
    4 Mutations can produce genetic variation.

    A. 1 and 2 only
    B. 1 and 3 only
    C. 1 and 4 only
    D. 2 and 3 only
    E. 2 and 4 only
    F. 3 and 4 only

  • Paris Pitsinikos

    2021/7월/수 at 5:53 오후
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    Down Accepted answer

    1. Asexual reproduction is done via mitosis. Mitosis produced two identical cells. This is false.

    2. There are other processes, such as crossing over, that increase the genetic variation during sexual reproduction.

    3. The environment can indeed cause genetic variation with temperature etc. This is correct.

    4. Mutations can obviously be the cause of the genetic variation. This is correct.

    The answer is F.

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