12.1/12.2 Vocab Review

What is the scientific study of heredity called?

• Biology

• Genetics

• Ecology

• Physiology

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NGSS.HS-LS3-1

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What is fertilization?

• The process of cell division

• The joining of two male cells

• The joining of a male and female reproductive cell during sexual reproduction

• The separation of alleles during meiosis

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A specific characteristic of an individual is known as a:

• Trait

• Phenotype

• Genotype

• Allele

What is a hybrid?

• An organism with two identical alleles

• The offspring of a cross between parents with different traits

• A diagram predicting genetic combinations

• A purebred organism

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NGSS.HS-LS3-2

One of a number of different forms of a gene is called:

• Trait

• Allele

• Phenotype

• Hybrid

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NGSS.HS-LS3-2

The principle of dominance states that:

• All traits are inherited equally

• Genes for different traits can segregate independently

• Some alleles are dominant, and others are recessive

• Alleles always pair identically

What does probability refer to in genetics?

• The certainty of a trait being inherited

• The likelihood that a particular event will occur

• The physical characteristics of an organism

• The arrangement of alleles in a Punnett square

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NGSS.HS-LS3-3

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What does it mean to be homozygous?

• Having two identical alleles for a particular gene

• Having two different alleles for a particular gene

• Having no alleles for a gene

• Being a hybrid organism

What does it mean to be heterozygous?

• Having two identical alleles for a particular gene

• Having two different alleles for a particular gene

• Having only recessive alleles

• Having no alleles

Tags

NGSS.HS-LS3-2

The physical characteristics of an organism are its:

• Genotype

• Phenotype

• Trait

• Allele