Genetics Quiz

Colorblindness is a recessive X-linked disorder.

Which genotype represents a male with normal vision?

• X^N Y^N

• Xⁿ Yⁿ

• X^N Y

• Xⁿ Y

Which of the following genotypes belongs in the red box in the Punnett square?

• X^BX^b
• X^bX^b
• X^bY
• X^BY

Different variations of a gene are called?

• Alleles
• DNA
• Chromosome
• Gene

What would the genotype be of a colorblind male?

• X^NY

• X^NYⁿ

• XⁿY

• XⁿYⁿ

The blending of two traits in which one is not completely dominant over the other is known as ---

• incomplete dominance

• codominance

What type of inheritance pattern is shown here?

• Codominance

• Incomplete dominance

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?

• Incomplete dominance

• Codominance

The green fish offspring in this image is an example of ---

• Incomplete dominance

• Codominance

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be black?

• 25

• 50

• 75

• 100

Incomplete dominance occurs in cats, which allows them to be Black, White, or gray as shown on this Punnett square. What percentage of the offspring will be white?

• 25

• 50

• 0

• 100