Genetics Practice Questions

Front

What is a chart that shows all the possible combinations of alleles that can result from a genetic cross?

Back

Punnet Square

Front

What do capital letters represent in genetics?

Back

Dominant alleles

Front

Which of the following genotypes is heterozygous: EE, tt, Rr, or both EE and tt?

Back

Rr

Front

What is the term for the 2 letter combination that represents an organism's genetic makeup?

Back

Genotype

Front

What is a form of a characteristic (a feature) called?

Back

Trait

Front

What is the term for the observable characteristics of an organism?

Back

Phenotype

Front

What are the different forms of a gene called?

Back

Alleles

Front

What is the probability of getting a dominant trait if one parent is homozygous dominant and the other is homozygous recessive?

Back

100% dominant trait

Front

What is the genetic makeup of an organism that has two identical alleles for a trait?

Back

Homozygous

Front

What is the genetic makeup of an organism that has two different alleles for a trait?

Back

Heterozygous