Genetics and Heredity

Front

What is the ratio of homozygous recessive offspring from a cross of two heterozygous parents?

Back

1 in 4

Front

In a heterozygous genotype, which allele takes over in the phenotype?

Back

Dominant

Front

What is the term for the genetic makeup of an organism?

Back

Genotype

Front

What is the term for the physical appearance of an organism?

Back

Phenotype

Front

If a black guinea pig (BB) and a white guinea pig (bb) mate, what is the chance of having a white guinea pig?

Back

0% (All offspring will be black)

Front

In a Punnett square, what does a lower case letter represent?

Back

Recessive allele

Front

What is the term for an allele that masks the effect of another allele?

Back

Dominant allele

Front

What is the term for an allele that is masked by a dominant allele?

Back

Recessive allele

Front

What is the expected phenotypic ratio of a monohybrid cross?

Back

3:1

Front

What is the expected genotypic ratio of a monohybrid cross?

Back

1:2:1