Genetics and Punnett Squares Quiz

What is the significance of using capital and lowercase letters in genetics?

• To indicate the age of the organism

• To represent dominant and recessive traits

• To show the gender of the organism

• To differentiate between different species

In a genetic cross, what does a heterozygote genotype look like?

• Two capital letters

• Two lowercase letters

• One capital and one lowercase letter

• Two different letters

What is the genotype of a blue-eyed animal in this example?

• bB

• bb

• Bb

• BB

What fraction of the offspring is expected to have blue eyes?

• 1/3

• 1/2

• 1/4

• 3/4

What percentage of the offspring will be heterozygous?

• 75%

• 50%

• 100%

• 25%