Unit 6, part 1 (Bio)

Front

What does 'homozygous' mean?

Back

Having two identical alleles for a specific gene.

Front

What is a gene?

Back

A segment of DNA that codes for a specific trait.

Front

What does 'heterozygous' mean?

Back

Having two different alleles for a specific gene.

Front

What is a phenotype?

Back

The physical expression of a trait.

Front

What genotype produces a recessive phenotype?

Back

hh (homozygous recessive).

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is an allele?

Back

A variant form of a gene.

Front

What does 'dominant' mean in genetics?

Back

An allele that expresses its trait even in the presence of a recessive allele.

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in heterozygous conditions.

Front

What is a chromosome?

Back

A structure made of DNA and proteins that contains genetic information.