Meiosis- Amoeba Sisters

What is the primary purpose of meiosis?

• To repair damaged cells

• To produce identical body cells

• To contribute to genetic diversity

• To create 46 chromosomes in each cell

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NGSS.HS-LS3-2

How many chromosomes do human gametes have?

• 23 chromosomes

• 46 chromosomes

• 92 chromatids

• 46 chromatids

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NGSS.HS-LS3-2

What happens during interphase before meiosis begins?

• Chromosomes are reduced to 23

• Cells divide into gametes

• DNA is replicated

• Crossing over occurs

How many times do cells divide during meiosis?

• Once

• Four times

• Twice

• Three times

What stages are duplicated in meiosis compared to mitosis?

• Prophase, metaphase, anaphase, and telophase

• Only anaphase and telophase

• Interphase and cytokinesis

• Only prophase and metaphase

What is crossing over and during which phase does it occur?

• Exchange of genetic material in prophase II

• Separation of sister chromatids in anaphase I

• Exchange of genetic material in prophase I

• Alignment of chromosomes in metaphase I

What is the result of meiosis in terms of cell number?

• 2 identical cells

• 4 genetically unique cells

• 1 single cell

• 8 daughter cells

Why do siblings with the same parents look different?

• Due to mitosis

• Because of crossing over and independent assortment in meiosis

• Because they have different numbers of chromosomes

• Due to nondisjunction

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NGSS.HS-LS3-2

What is the significance of independent assortment in meiosis?

• It repairs damaged DNA

• It reduces the chromosome number by half

• It contributes to genetic variation

• It duplicates the chromosomes

What is nondisjunction?

• An error in chromosome separation

• The duplication of DNA

• A process that increases genetic diversity

• The exchange of genetic material between chromosomes

Tags

NGSS.HS-LS3-2