Monohybrid Cross Quiz

What does a true-breeding round plant indicate about its alleles?

• It has one dominant and one recessive allele.

• It has two recessive alleles.

• It has two dominant alleles.

• It has one allele of each type.

Which of the following represents a true-breeding wrinkled plant?

• RR

• Rr

• rr

• RrRr

What is the probability of obtaining a round seed plant in the F1 generation from a cross between a true-breeding round and a true-breeding wrinkled plant?

• 50%

• 100%

• 0%

• 25%

In a Punnett square, what do the letters on the top and side represent?

• The parents' phenotypes

• The offspring's traits

• The environmental factors

• The gametes of the parents

What does a whole percentage mean in the context of expressing probabilities?

• Including decimal places

• Excluding decimal places

• Using ratios

• Using fractions