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Questions and Answers
During which phase of meiosis does crossing over occur?
During which phase of meiosis does crossing over occur?
- Prophase I (correct)
- Prophase II
- Anaphase I
- Metaphase I
What adds more recombination probabilities to the independent assortment of chromosomes in meiosis?
What adds more recombination probabilities to the independent assortment of chromosomes in meiosis?
- Synapsis
- Crossing over (correct)
- Mitosis
- Random fertilization
How many genetic combinations in the gametes can be produced from one original cell by meiosis alone for humans?
How many genetic combinations in the gametes can be produced from one original cell by meiosis alone for humans?
- About 8 million (correct)
- About 23
- About 46
- About 1 billion
What creates a new individual by the random fusion of two gametes?
What creates a new individual by the random fusion of two gametes?
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What can create an abnormal number of chromosomes in the sperm or egg cell if meiosis does not occur properly?
What can create an abnormal number of chromosomes in the sperm or egg cell if meiosis does not occur properly?
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