Front

Traits passed from parents to offspring

Back

heredity

Front

Scientific study of heredity

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genetics

Front

Structures in eukaryotic nuclei made of genes

Back

Chromosomes

Front

Factors controlling traits; DNA strands

Back

genes

Front

Physical characteristics of organisms

Back

Traits

Front

An organism with two different alleles for a trait

Back

heterozygous

Front

An organism with two identical alleles for a trait

Back

homozygous

Front

An allele masked by a dominant allele

Back

Recessive

Front

An allele whose trait always shows up in the organism.

Back

dominant

Front

Mix of alleles

Back

hybrid