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Crossing over occurs in ______________ of meiosis.
prophase I
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During which stage of mitosis do chromosomes line up at the equator of the spindle apparatus?
metaphase
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Homologous pairs of chromosomes
Consist of two chromosomes the same size and with the same genes
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there are 20 centromeres in a cell, how many chromosomes are there?
20
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Which of the following organisms does NOT reproduce cells by mitosis and cytokinesis?bacterium
bacterium
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During anaphase of meiosis I, what separates?
homologous chromosomes
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The chromosome number is reduced from diploid to haploid during
meiosis I
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The longest period of a cell's life cycle is
interphase
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Which of the following is haploid?
gamete
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The genetic material in bacteria consists of
?
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