Quiz: Monohybrid Cross

A(n) ________ is an alternate form of a gene.

• allele

• phenotype

• genotype

• chromosome

When a guinea pig has two different alleles for a gene, they are said to be

• heterozygous

• homozygous

A ____________allels always shows up in an organism when it is present.

• dominant

• recessive

How many alleles does each person carry for a trait?

• 1

• 2

• 3

• 4

How many alleles does a baby guinea pig get from each parent?

• 1

• 2

• 3

• 4

Dominant alleles are represented by a

• Male gene.

• lower case letter

• recessive trait

• capital letter

Aa, Bb, DD, yy are all examples of

• genotype

• phenotype

In guinea pig offspring hh always show up as

• dominant

• recessive

Which of the following is a phenotype?

• Hh

• Hair on a guinea pig

• Heterozygous

• DNA

Which of the following genotypes is heterozygous?

• H

• Hh

• HH

• hh