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Definetion: the scientific

study of heredity

Example: when you study

about heredity.

Definetion: The passing

of physical

characteristics

from parents to offspring.

Defineiton: Each specific

characteristic,

such as stem hieght or seed

color, is called a trait.

Example: If you have a nose

or eyes or anything

else like a certain parent

that than is a trait.

Examples: Plants grow different sizes.

Some plants produce green seeds while others produce yellow seeds.

Genetics

Heredity

Trait

Heredity happens when

offspring occurs.

Example: Secientists are

describing factors that control a trait.

If you look more like your

mom than you have

more traits from her.

Definition: hidden whenever

the dominant

allele is present.

Definetion: To describe

the factors

that control a trait.

Studying the heredity

Gene

Example: you can only see it when the dominant allele is present.

Definetion: An organism is the

offspring of

many generations that have the

same form of a trait.

Definetion: A new organism

begins to form when egg and sperm

cells join in the process called fertilization.

Example: when the

egg and

sperm cells join

The word gene is only used

for another word.

Fertilization

Recessive Allele

Defintion: the different

forms of a gene.

Purebred

Example: Purebred pea plants

always come from tall parent

plants.

Before fertilization

in pea plants, pollen

must reach the pistil

of a pea.

Example: Traits that are

different.

Plants grow by traits.

Alleles

Scientists study this when the dominant is present.

Definetion: one whoose trait always

shows up in the organism when the

allele is present.

This organism has different

alleles.

Example: this organisms

dominant allele

showed up when it was tested.

Dominant

Allele

Definetion: an organism

has two different

alleles for a trait.

Example: If a plant has two different alleles for a trait than the plant is a hybrid.

Hybrid

People study dominant

Allele.

Alot of plants are

hybrids.

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