Genetics Vocabulary #1

Front

Different versions of a gene are known as

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alleles

Front

Having two different genes for a trait (sometimes called hybrid) is called

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heterozygous

Front

Tt is an example of _____ alleles

Back

heterozygous

Front

What did Gregor Mendel use to discover the principles that rule heredity?

Back

Pea Plant

Front

Having two of the same genes for the trait (sometimes called purebred) is called

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homozygous

Front

The physical expression of a trait is known as

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phenotype

Front

The genetic makeup of an organism is referred to as its

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genotype

Front

A change in the DNA sequence that can lead to variations in traits is called a

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mutation

Front

The observable characteristics of an organism are determined by its

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genotype

Front

The principle that states that alleles for different traits are distributed to gametes independently of one another is known as

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the law of independent assortment