AP Biology Meiosis

When does crossing over occur?

• Interphase
• Prophase 1
• Prophase 2
• Metaphase 1

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If a stem cell (body cell) has 24 chromosomes, how many will it have at the end of meiosis?

• 24

• 12

• 6

• the number varies per species

Meiosis results in ______.

• 4 genetically unique haploid gametes

• 4 genetically unique diploid cells

• 2 genetically identical cells

• 4 genetically identical cells

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NGSS.HS-LS3-2

The chromosomes that pair up during meiosis, are called __________ chromosomes.  

• homozygous 
• asexual
• homologous
• genes

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NGSS.HS-LS3-2

What phase is  shown in the picture?

• anaphase 1
• anaphase 2
• metaphase 1
• telophase 1

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NGSS.HS-LS1-4

Two processes that increase genetic variation during meiosis are crossing over and _____

• Synapsis

• Tetrad

• Independent assortment

• Gameiosis

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NGSS.HS-LS3-2

A haploid cell has

• three sets of chromosomes

• one set of chromosomes

• two sets of chromosomes

• four sets of chromosomes

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NGSS.HS-LS3-2

Human eggs and sperm are _____, and each has ____ chromosomes.

• diploid, 23
• diploid, 46
• haploid, 23
• haploid, 46

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NGSS.HS-LS3-2

NGSS.HS-LS3-1

What kind of cells are made in MEIOSIS?

• Haploid Gametes
• Diploid Somatic Cells
• Skin Cells
• Liver Cells

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NGSS.HS-LS3-2

A male shark has 40 chromosomes in each of its sex cells. How many would be present in its body cells?

• 20
• 40
• 80
• 160

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NGSS.HS-LS3-1