• 2022-06-07 问题

    The eggs discharged from the ovaries are at:() A: First meiosis metaphase B: Second meiosis prophase C: First meiosis prophase D: Second meiosis metaphase E: Second meiosis anaphase

    The eggs discharged from the ovaries are at:() A: First meiosis metaphase B: Second meiosis prophase C: First meiosis prophase D: Second meiosis metaphase E: Second meiosis anaphase

  • 2022-05-31 问题

    One of the key reasons why older mothers tend to give birth to babies with trisomies is: A: Delayed stabilization of cohesins during meiosis. B: Premature degradation of cyclins during meiosis. C: Premature degradation of cohesins during meiosis. D: Premature resolvement of chiasmata during meiosis.

    One of the key reasons why older mothers tend to give birth to babies with trisomies is: A: Delayed stabilization of cohesins during meiosis. B: Premature degradation of cyclins during meiosis. C: Premature degradation of cohesins during meiosis. D: Premature resolvement of chiasmata during meiosis.

  • 2022-06-06 问题

    Which of the following about cell cycle is NOT true?( ) A: We can get the synchronization of the cells by blocking DNA synthesis by TdR. B: Cytokinesis of animal cells is mediated by a contractile ring of actin and myosin II filaments. C: Meiosis II is similar to meiosis I. D: According to the characteristics of cell division, cell groups can be divided into three types, such as Cycling cells, Terminally Differentiated cells and Quiescent cell.

    Which of the following about cell cycle is NOT true?( ) A: We can get the synchronization of the cells by blocking DNA synthesis by TdR. B: Cytokinesis of animal cells is mediated by a contractile ring of actin and myosin II filaments. C: Meiosis II is similar to meiosis I. D: According to the characteristics of cell division, cell groups can be divided into three types, such as Cycling cells, Terminally Differentiated cells and Quiescent cell.

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