Genetics Vocabulary

One of the two forms of a gene is called a(n)

• genotype
• allele
• hybrid
• trait

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NGSS.HS-LS3-1

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A genotype is

• the listing of the alleles for the trait
• the physical appearance of the trait
• the separation of the chromosomes
• the letters seen on the outside of the Punnett square

When a person has two different alleles for a gene, they are said to be

• Heterozygous

• Homozygous

• Hemizygous

Why is crossing over important?

• Increases the number of genes that can be inherited
• Increases genetic variation
• Decreases the occurrence of genetic diseases
• Decreases the number of genes that can be inherited

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NGSS.HS-LS3-2

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A __________ allele always shows up in an organism when the it is present.

• dominant

• hybrid

• recessive

This is an example of a ______________.

• phenotype
• genotype
• xenotype
• base pairs

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NGSS.HS-LS1-1

NGSS.HS-LS3-1

This is an example of _____________.

• phenotype
• heliotype
• DNA
• genotype

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NGSS.HS-LS3-1

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The genetic make up of this flower is ________.

• homozygous recessive
• heterozygous
• homozygous dominant
• white

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NGSS.HS-LS3-1

NGSS.HS-LS3-2

The genetic makeup of the flower is _____________

• red
• heterozygous
• homozygous dominant
• homozygous recessive

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NGSS.HS-LS3-2

Which of the following is an example of a Dominant Allele?

• a

• A

• b

• aa