Genetics Practice Questions

Front

What does a lower case letter represent in genetics?

Back

A lower case letter represents a recessive allele.

Front

What is a recessive allele?

Back

A recessive allele is a gene whose trait will be hidden if a dominant allele is present.

Front

Which genotype represents homozygous recessive?

Back

The genotype 'rr' represents homozygous recessive.

Front

What does homozygous mean?

Back

Homozygous means having two identical alleles for a particular gene.

Front

What is homozygous recessive?

Back

Homozygous recessive refers to having two recessive alleles for a trait.

Front

What is a dominant allele?

Back

A dominant allele is a gene that can mask the effect of a recessive allele.

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism.

Front

What is a genotype?

Back

A genotype is the genetic constitution of an individual, represented by alleles.

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross.

Front

What trait is dominant in pea plants?

Back

The trait for yellow pea seeds is dominant.