Sex-Linked Traits

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

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• X^BX^b
• X^bX^b
• X^bY
• X^BY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Different variations of a gene are called?

• Alleles
• DNA
• Chromosome
• Gene

Tags

NGSS.HS-LS3-2

What would the genotype be of a colorblind male?

• X^NY

• X^NYⁿ

• XⁿY

• XⁿYⁿ

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

Which gender has an X and a Y chromosome?

• male

• female

Colorblindness is more common in males than in females because......

• fathers pass the allele for colorblindness to their sons only

• the allele for colorblindness is located on the Y chromosome

• the allele for colorblindness is recessive and located on the X chromosome

• males who are colorblind have two copies of the allele for colorblindness

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2