Heredity and Genetic Disorders

Front

When you cross two parents, each parent is responsible for passing _______ of their two alleles for each individual trait.

Back

1

Front

Different forms of genes are called _______.

Back

Allele

Front

Grey (G) fur is dominant to brown (g) fur in mice. What would be the genotype of a mouse that is homozygous dominant?

Back

GG

Front

Human chromosomes that determine gender are _______.

Back

X and Y

Front

Illnesses or disorders caused by an abnormal gene are known as _______.

Back

Genetic Disorder

Front

The physical expression of a trait is referred to as _______.

Back

Phenotype

Front

The genetic makeup of an organism is called its _______.

Back

Genotype

Front

A change in the DNA sequence that can lead to genetic disorders is known as a _______.

Back

Mutation

Front

The two alleles for a trait that are the same are referred to as _______.

Back

Homozygous

Front

The two alleles for a trait that are different are referred to as _______.

Back

Heterozygous