AP Biology Unit 5 Review

This process involves homologous chromatids exchanging genetic material to increase genetic diversity.

• crossing over

• random fertilization

• independent assortment

• gene flow

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Which of the following does NOT support the concept of common ancestry for all organisms?

• DNA/RNA (genetic code) are shared by all living systems

• Ribosomes are found in all forms of life

• Glycolysis takes place in all organisms

• All organisms undergo sexual reproduction

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NGSS.HS-LS4-1

Which of the following best describes the inheritance pattern of the shown pedigree?

• Y Linked

• X-Linked Dominant

• Autosomal Recessive

• X-Linked Recessive

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NGSS.HS-LS3-1

Which of the following best describes the phenotypic ratio of 6:3:3:2:1:1?

• Incomplete dominance & complete dominance on dihybrid cross

• Incomplete dominance on dihybrid cross

• Complete dominance on dihybrid cross

• Epistasis on dihybrid cross

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In animals, traits determine by the mitochondrial DNA are inherited from the _______________.

• mother

• brother

• father

• sister

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Describe the process of nondisjunction.

• Homologous chromosomes exchange genetic information

• The alignment of the chromosomes on the metaphase plate

• Homologous chromosomes or sister chromatids remain attached during anaphase

• The process of sperm and egg fusing to create a zygote

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NGSS.HS-LS3-2

Which of the following is a predicted ratio of a dihybrid cross?

• 9:3:3:1

• 9:3:4

• 1:2:1

• 1:1:1:1

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NGSS.HS-LS3-3

Describe why a male is more likely to be affected by a sex-linked trait?

• Males have only 1 Y chromosome

• Females have only 1 Y chromosome

• Males have only 1 X chromosome

• Females have only 1 X chromosomes

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NGSS.HS-LS3-1

The diagram above illustrates which of the following processes?

• Crossing-over

• Base pair subsitution

• Duplication

• Deletion

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NGSS.HS-LS3-2

Imagine you are performing a cross involving garden pea plants. What F1 offspring would you expect if you cross true-breeding parents with green seeds with yellow seeds? Yellow seed color is dominant over green.

• 100 percent yellow-green seeds

• 100 percent yellow seeds

• 50 percent yellow, 50 percent green seeds

• 25 percent green, 75 percent yellow

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