Dominant & Recessive Traits

Front

What does the term homozygous mean?

Back

The same allele variation is present.

Front

What does the term heterozygous mean?

Back

Different allele variations are present.

Front

What is a dominant trait?

Back

A trait that is expressed when at least one dominant allele is present.

Front

What is a recessive trait?

Back

A trait that is expressed only when two recessive alleles are present.

Front

How are recessive alleles represented?

Back

Lower case letters.

Front

How are dominant alleles represented?

Back

Upper case letters.

Front

What is the genotype for a homozygous dominant individual?

Back

AA.

Front

What is the genotype for a homozygous recessive individual?

Back

bb.

Front

What is the genotype for a heterozygous individual?

Back

Bb.

Front

If a black phenotype is recessive, what is its genotype?

Back

bb.