Meiosis and Genetics Chapter Quiz

Chiasmata are most closely related to which of the following?

• crossing over
• fertilization
• cytokinesis
• mitosis

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NGSS.HS-LS3-2

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

• 24
• 12
• 6
• the number varies per species

When does crossing over occur?

• Interphase
• Prophase 1
• Prophase 2
• Metaphase 1

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NGSS.HS-LS3-2

Trisomy is a genetic disorder that ________

• has three sets of chromosomes
• has three copies of a particular chromosome
• that is curable
• none of the above

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NGSS.HS-LS3-1

A single gene has 3 or more alternative forms. These are called

• heterozygotes
• multiple alleles
• epistatic
• polygenic

One of the main reasons genes assort independent of one another  is that 

• they produce unrelated traits
• they produce related traits
• they are on the same chromosome
• they are on different chromosomes.

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NGSS.HS-LS3-1

A child has type O blood, if mother has type A blood, what would the fathers blood type be

• A,B, or O
• AB or A
• AB or B
• O only

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NGSS.HS-LS3-1

In mice, the homozygous mice are black and white. The heterozygous mice are gray. What pattern of inheritance is expressed in fur color in mice?

• complete dominance and recessiveness
• co-dominance
• incomplete dominance
• pleiotropy

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NGSS.HS-LS3-1

A man who has a sex-linked allele will pass it on to

• all his daughters
• all his sons
• 1/2 of his daughters
• 1/2 of his sons

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NGSS.HS-LS3-1

Red x white = pink

• codominance
• multiple alleles
• incomplete dominance
• epistasis