7th grade Genetics/Heredity

12 terms by Thewrongs 

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Genotype

An organism's genetic makeup

Phenotype

Owtward physical appearance and behavior of an organism

Punnett Square

A tool used to predict the probability of certain traits in offsring that shows the different ways alleles can combine

Dominate

Describes a trait that covers over, or dominates another form of that trait

Trait

Charateristis that get passed down

Heredity

The passing of traits from one parent to offspring

Genetics

The study of how traits are inherited through the actions of alleles

Homozygous

Describes an organism with two alleles that are the SAME for a trait

Heterozygous

Describes and organism with two alleles for A trait

Sex-linked Gene

An allele inherited ona sex chromosome and that can cause human genetic disorders such as colorblindness and hemophilia

Incomplete Dominance

Production of a phenotype thats intermediate between the two homozygous parent

Polygenic Inheritance

Occurs when a group of gene pairs acts together and produces a specific trait, such as human eye color, skin color, or height

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