2010-2023 Chapter 14 - Human Heredity Review

A human female inherits

• two copies of every gene located on the X chromosome.
• twice as many sex chromosomes as a human male inherits.
• one copy of every gene located on the Y chromosome.
• all of the same genes that a human male inherits.

How many chromosomes are shown in a normal human karyotype?

• 2
• 23
• 44
• 46

Sex-linked genes are located on

• the autosomal chromosomes.
• the X chromosome only.
• the Y chromosome only.
• both the X chromosome and the Y chromosome.

Colorblindness is more common in males than in females because the allele for colorblindness is

• dominant and located on the X chromosome.
• recessive and located on the Y chromosome.
• recessive and located on the X chromosome.
• recessive and located on the Y chromosome.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following statements is true?

• Females cannot have hemophilia.
• A colorblind girl’s father must be colorblind.
• A sex-linked allele cannot be dominant.
• A colorblind boy’s father must be colorblind.

Human males have

• one X chromosome only.
• two X chromosomes.
• one X and one Y chromosome.
• two Y chromosomes.

Which of the following form(s) a Barr body?

• one of the Y chromosomes in a male cell
• one of the X chromosomes in a male cell
• one of the X chromosomes in a female cell
• both of the X chromosomes in a female cell

A cat that has spots of more than one color

• has no Barr bodies.
• is probably female.
• is probably male.
• could be male or female.

Which of the following pairs of genotypes result in the same phenotype?

• IAIA and IAIB

• IBIB and IBi

• IBIB and IAIB

• IBi and ii

If a man with blood type A and a woman with blood type B produce an offspring, what might be the offspring’s blood type?

• AB or O

• A, B, or O

• A, B, AB, or O

• AB only