Heredity Vocabulary Review

What are genes?

• none of these

• The powerhouse of cells.

• Something you wear.

• Segments of DNA that carry traits for offspring.

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Which of the following is an example of phenotype?

• blue eyes

• bb

• BB

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The different forms of a gene

• atoms

• proteins

• wheels

• alleles

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This trait always shows up in an organism when the allele is present

• dominant allele

• recessive allele

• Punnett square

• codominance

This trait is hidden whenever the dominant allele is present

• dominant allele

• recessive allele

• Punnett square

• codominance

A chart that shows all the possible combinations of alleles that can result from a genetic cross

• dominant allele

• probability

• Punnett square

• Pedigree

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An organism's physical appearance or visible traits. (what it looks like)

• genotype

• phenotype

• look

• characteristic

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An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.

• characteristic

• phenotype

• gene

• genotype

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An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.

• characteristic

• phenotype

• gene

• genotype

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An organism that has two identical (THE SAME) alleles for a trait (purebred)

• heterozygous

• twin

• homozygous

• dominant

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