OL Unit 7 Reproduction & Development Review

What causes genetic variation in meiosis?

• chromosomes lining up
• crossing over of chromosomes
• separation of chromosomes
• chromosomes pulling apart

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NGSS.HS-LS3-2

What kind of cells are made in MEIOSIS?

• Haploid cells
• Diploid Cells
• Skin Cells
• Liver Cells

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Diploid Cells are represented by

• 2n
• n
• 4n
• 1/2 n

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If the Diploid number of Carrots is 18, the haploid number is

• 18
• 9
• 27
• 36

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The process of crossing over occurs in what phase of meiosis?

• anaphase 1
• prophase 1
• prophase 2
• telophase 1

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

• homozygous 
• asexual
• homologous
• genes

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When homologous chromosomes match up, they form a structure call a ___________.

• tetrad (pair of chromosomes, one from mom and one from dad)
• triad
• diploid
• quad (group of 4 replicated chromosomes, 2 from mom and 2 from dad)

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Crossing over creates

• male genotype
• genetic variation (differences)
• DNA replication
• mitosis

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NGSS.HS-LS4-2

Which cellular process is shown?

• meiosis
• endocytosis
• mitosis
• phagocytosis

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Which of the following best describes meiosis?

• It is carried out in all tissues theat require cell replacement
• It occurs only in cells in the reproductive structures of an organism
• It happens in all of the tissues except the brain and spinal cord
• It is the first stage of mitosis

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