passing of physical characteristics from parents to offspring

characteristic passed from parent to offspring

the scientific study of heredity

a new organism begins to form when egg and sperm join the process

offspring of many generations that have the same trait

one whose trait always shows up in the organism when the allele is present

is hidden when the allele is present

organism who has two different alleles for a trait

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4.1 voc

Vocabulary

Term	Definition
Heredity	passing of physical characteristics from parents to offspring
trait	characteristic passed from parent to offspring
genetics	the scientific study of heredity
fertilization	a new organism begins to form when egg and sperm join the process
purebred	offspring of many generations that have the same trait
gene	factors that control a trait
alleles	different forms of genes
dominant allele	one whose trait always shows up in the organism when the allele is present
recessive allele	is hidden when the allele is present
hybrid	organism who has two different alleles for a trait