AP Bio Unit 5 Review: Heredity

During what phase does the process shown occur?

• Prophase of mitosis

• Prophase I of meiosis

• Prophase II of meiosis

• This is a form of non-disjunction and not a normal process in cell division

The diploid number for this cells shown is 4. Identify the phase of cell division.

• Anaphase of mitosis

• Anaphase I of meiosis

• Anaphase II of meioisis

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What phase is represented in the picture?

• metaphase I of meiosis

• metaphase II of meiosis

• metaphase of mitosis

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What phase is represented?

• Metaphase I of meiosis

• Metaphase II of meiosis

• Metaphase of mitosis

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What happens during meiosis I (check ALL that apply!)

• sister chromatids are separated

• homologous chromosomes are separated

• diploid daughter cells are produced

• haploid daughter cells are produced

• genes are rearranged

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In which type of cell division does this occur:

DNA is replicated (sister chromatids form) before the process starts

• mitosis

• meiosis

• both mitosis and meiosis

• neither mitosis or meiosis

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What does this process accomplish?

• This process reduces the number of chromatids per chromosome

• This creates new combinations of genes on a single chromosome; resulting in genetic variation

• This process reduces the chromosome number (diploid to haploid)

• This is a form of non-disjunction and not a normal process in cell division

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In what form are the daughter cells and chromosomes just after meiosis II has finished?

• haploid, tetrads (homologs w/ sister chromatids) are joined

• diploid, sister chromatids have separated

• haploid, sister chromatids have separated

• diploid, tetrads (homologs w/ sister chromatids) are joined

What is the key difference between metaphase in Meiosis I versus metaphase in mitosis?

• chromosomes line up single-file in the middle in meiosis I

• chromosomes line up double-file in the middle in meiosis I

Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.

• 23, 46
• 46, 23
• 2, 4
• 50, 100

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