本题目来源于试卷: Continuity and Change D.4 Cell & Nuclear Division，类别为 IB生物学
[单选题]
At the end of which pha) i6afyw*7ckb v5uc -vse of meiosis I does *hb8cii- nkqbyg (.q 0crossing over occur, and what is the outcome of crossing oveic8( nh b0q *-gbky.qir?
A. Meiotic phase is Prophase I;Outcome is increased genetic variation
B. Meiotic phase is Prophase I;Outcome is halved chromosome number
C. Meiotic phase is Anaphase I;Outcome is increased genetic variation
D. Meiotic phase is Anaphase I;Outcome is halved chromosome number
参考答案: A
本题详细解析:
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