Genetics Review

What does flipping coins have to do with genetics?

• Absolutely nothing.

• Flipping coins is fun and exciting.

• Genetics involves the probability of traits showing up in organisms.

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On Mars, it is preferable to have dominant green skin (G) versus red skin (g). A male with heterozygous alleles will have a little Martian with a female that has red skin. Draw a Punnet Square to show their probability for having a green-skinned Martian and then choose the correct answer.

• They will have a 100% to have a green-skinned Martian because the dominant allele will mask the red allele.

• There is 0% chance to have a green-skinned Martian because you need two recessive genes to get the dominant trait.

• There is a 50% chance to have a green-skinned Martian.

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NGSS.HS-LS3-1

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In this punnett square, which is the dominant trait?
The B stands for bud.

• purple flower bud

• white flower bud

• dominant

• recessive

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NGSS.HS-LS3-1

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The study of heredity and the variation of inherited characteristics 

• gene

• genetics 

• meiosis 

• hybrid 

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NGSS.HS-LS3-1

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Who studied different characteristics of pea plants by cross-pollinating plants?

• Gregor Mendel

• Albert Punnett

• Sir Isaac Newton

• David Kuster

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NGSS.HS-LS3-2

What does a filled in square represent?

• Not affected Female

• Not affected Male

• Affected Male

• Affected Female

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NGSS.HS-LS3-1

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How many generations are shown in this pedigree?

• 1

• 2

• 3

• 4

What is this?

• Pedigree

• Karyotype

• Venn diagram

• Punnett Square

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NGSS.HS-LS3-1

Which individual in the first generation is a carrier?

• The male

• The female

• individual 1

• None of the above

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NGSS.HS-LS3-1

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Heterozygous is when...

• the alleles are the same

• the alleles are different

• the alleles are absent

• the alleles are present