REVIEW - Inheritance of traits

The study of heredity and variations

• Biology
• Evolution
• Botany
• Genetics

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

The transfer of traits from parents to offspring

• Mutation
• Heredity
• Evolution
• Genetics

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Father of Genetics

• Charles Darwin
• Louis Pasteur
• Gregor Mendel
• Isaac Newton

Which of the following best describes a dominant allele?

• An allele that expresses its trait in the presence of another allele.
• An allele that only expresses its trait when paired with another dominant allele.
• An allele that does not express any traits.
• An allele that is always recessive.

In a heterozygous individual, which trait will be expressed if one allele is dominant and the other is recessive?

• Both traits will be equally expressed.
• Neither trait will be expressed.
• The dominant trait will be expressed.
• The recessive trait will be expressed.

Which of the following is a genotype of Brown eyes dominant trait?

• BB or Bb
• AA
• BbB
• bb

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which is an example of Phenotype?

• Tall

• TT

• Tt

• tt

A family where both parents have blue eyes, but one child has brown eyes. Which is the dominant trait?

• Blue eyes are the dominant trait.
• Both traits are equally dominant.
• Brown eyes are recessive.
• Brown eyes are the dominant trait.

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NGSS.HS-LS3-2

DD is a ____________.

• Homozygous dominant

• Homozygous recessive

• Heterozygous dominant

• None of the above

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NGSS.HS-LS3-1

An example of a heterozygous dominant is___________.

• AA

• Aa

• aa

• aAa