Genetics Test Review

Front

What does genotype refer to?

Back

The possible combination of alleles (Ex: HH, Hh, hh)

Front

What is the genotypic ratio when crossing two heterozygous plants (Aa x Aa)?

Back

1AA: 2Aa: 1aa

Front

Which conclusion was NOT made by Gregor Mendel?

Back

An offspring's traits are always a blending or mixture of the parents.

Front

What term describes having two different genes for a trait?

Back

Heterozygous

Front

What are the possible genotypes for blood type A?

Back

Both AA and AO

Front

What is the definition of a dominant allele?

Back

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

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.

Front

What is the purpose of a Punnett square?

Back

To predict the genotypes and phenotypes of offspring from a genetic cross.

Front

What does homozygous mean?

Back

Having two identical alleles for a trait (Ex: AA or aa).

Front

What is the phenotypic ratio for a monohybrid cross?

Back

3:1 (dominant:recessive) in the offspring.