Monohybrid Quiz

In a monohybrid cross, if both parents are heterozygous (Aa), what is the expected genotypic ratio of the offspring?

• 1:2:1

• 3:1

• 1:1

• 1:1:1:1

In a monohybrid cross, if both parents are heterozygous (Aa), what is the expected phenotypic ratio of the offspring?

• 1:2:1

• 3:1

• 1:1

• 1:1:1:1

If a homozygous dominant (AA) individual is crossed with a homozygous recessive (aa) individual, what is the genotype of all the offspring?

• AA

• Aa

• aa

• None of the Above

A monohybrid cross involves?

• two genes.

• a pair of contrasting traits.

• two genes with multiple alleles.

• multiple genes.

In a population of imaginary "Fluffle-Bunnies," fur color is determined by a single gene with two alleles: "F" for fluffy white fur (dominant) and "f" for smooth brown fur (recessive). Recognizing the importance of individual differences, which of the following statements BEST reflects how a monohybrid cross of two heterozygous Fluffle-Bunnies (Ff x Ff) illustrates this concept?

• The cross demonstrates that all Fluffle-Bunnies will have the same fur color, highlighting the uniformity of a population.

• The cross reveals that only the dominant allele will be expressed, ignoring the existence of the recessive allele and its associated trait.

• The cross shows a predictable ratio of different fur colors (phenotypes) among the offspring, demonstrating how genetic variation leads to individual differences within a population.

• The cross proves that all offspring will inherit a blend of both fur colors, showing a lack of distinct individual traits.