What does phenotype mean?

• the genetic code (AA, Aa, aa)

• a physical characteristic or trait

• the alleles

• a combination of chromosomes

What does genotype mean?

• the genetic code (AA, Aa, aa)

• a physical characteristic or trait

• eye colour

• heterozygous

The allele that determines the phenotype in the heterozygote is the _______ allele.

• recessive

• dominant

The allele that is "hidden" in the phenotype of a heterozygote is the _______ allele.

• recessive

• dominant

Which allele is dominant in this pair: Tt

• T

• t

Which allele is recessive in this pair: Ff

• F

• f

Which is an example of a phenotype?

• Aa

• a scar

• curly hair

• braids

Which is an example of a gene?

• blue

• eye colour

• a tattoo

• braids

Which is an example of an allele.

• chromosome

• hair colour

• pierced ears

• brown eyes

Which alleles are heterozygous?

• Dd

• DD