Genetics Review

Front

What is the physical expression of a trait?

Back

Phenotype

Front

What is the genetic makeup of an organism?

Back

Genotype

Front

What do you call a change in the DNA sequence?

Back

Mutation

Front

What is a genetic disorder?

Back

A condition caused by abnormalities in genes or chromosomes.

Front

What is the term for an organism with two identical alleles for a trait?

Back

Homozygous

Front

What is the term for an organism with two different alleles for a trait?

Back

Heterozygous

Front

How many alleles does an offspring inherit from each parent for every trait?

Back

1

Front

What is the expected genotype ratio from a homozygous dominant and heterozygous cross?

Back

50% BB and 50% Bb

Front

What is the expected phenotype ratio from a homozygous dominant and heterozygous cross?

Back

100% black fur

Front

What is the term for the different forms of a gene?

Back

Alleles