Basic Genetics Flashcard

Front

What is a homozygous recessive genotype?

Back

A genotype with two identical recessive alleles, such as 'gg'.

Front

What phenotype is expressed with the genotype Pp?

Back

Purple flowers, because purple is the dominant trait.

Front

What is a dominant allele?

Back

An allele that covers up or masks another form of that trait.

Front

What is a heterozygous genotype?

Back

A genotype with one dominant and one recessive allele, such as 'Bb'.

Front

What is the phenotype of a heterozygous individual with brown hair (B) and blonde hair (b)?

Back

Brown hair, because brown is the dominant trait.

Front

What is a homozygous dominant genotype?

Back

A genotype with two identical dominant alleles, such as 'FF'.

Front

What does the term 'phenotype' mean?

Back

The physical expression or characteristics of a trait, such as flower color.

Front

What does the term 'genotype' mean?

Back

The genetic makeup of an organism, represented by alleles.

Front

What is a recessive allele?

Back

An allele that is masked by a dominant allele and only expressed when homozygous.

Front

If 'F' represents freckles and 'f' represents no freckles, what is the genotype for someone with no freckles?

Back

ff, which is homozygous recessive.