Genetics Vocabulary Basics

Front

What is a homozygous dominant genotype?

Back

A genotype with two identical dominant alleles, such as MM.

Front

What does the prefix 'homo-' in homozygous mean?

Back

same

Front

What is a homozygous recessive genotype?

Back

A genotype with two identical recessive alleles, such as rr.

Front

What does the prefix 'hetero-' in heterozygous mean?

Back

different

Front

What is a phenotype?

Back

The physical expression or characteristics of a genotype, such as hair color.

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

If B = brown fur and b = white fur, what is the phenotype of a rabbit with genotype Bb?

Back

Brown fur.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles express their traits even when only one copy is present; recessive alleles require two copies to express their traits.

Front

What is an example of a homozygous dominant genotype?

Back

AA or BB.

Front

What is an example of a homozygous recessive genotype?

Back

aa or bb.