Heredity

The brown eye trait is dominant over blue eyes. Which of the following genotypes best represents the phenotype for blue eyes?

• BB

• Bb

• bb

• bB

Which genotype below represents a homozygous trait?

• Aa

• AA

• aA

A hitched thumb is a recessive trait. A person with a hitched thumb would have a genotype of?

• BB

• Bb

• bb

• bB

Each organism has 2 alleles for a particular trait. Where do these two alleles come from?

• One from each parent

• Both from one parent

• Alleles do not come from parents

• The kidney

A male heterozygous for widow’s peak marries a female without a widow’s peak.

Widow’s peak is a dominant trait (H) not having a widow’s peak is recessive (h).

What is the male's genotype?

• HH

• Hh

• Widow's Peak

• No Widow's Peak

A male heterozygous for widow’s peak marries a female without a widow’s peak.

Widow’s peak is a dominant trait (H) not having a widow’s peak is recessive (h).

Use the Punnett Square on Widow's Peal to answer the following question:

What percent of the children will have widow's peak?

• 25%

• 50%

• 75%

• 100%

Has 2 different alleles is _____________________.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

A diagram that highlights the traits of biological family members is called a _______________.

• Punnett Square

• Karyotype

• Pedigree

• Pie Chart

Has 2 of the same alleles is __________________.

• Genotype

• Phenotype

• Homozygous

• Heterozygous

An organism’s genetic makeup is a _________________.

• Genotype

• Phenotype

• Homozygous

• Heterozygous