Sex-Linked Traits

Which of the following genotypes shows a CARRIER for a trait?

• X^BX^b

• X^bX^b

• X^BX^B

• X^bY

Tags

NGSS.HS-LS3-1

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

What is 1 examples of an X-linked genetic disorder?

• Huntington's Disease

• Down's Syndrome

• Colorblindness

• Diabetes

Huntington's Disease is an autosomal dominant disorder. What would the genotype of an affected person be?

• Hh

• hh

• HH

• none of these

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A gene that is located on 1 of the first 44 chromosomes is called _____.

• autosomal

• x-linked

• dominant

• recessive

Tags

NGSS.HS-LS3-1

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

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

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

The sex of a child is determined by

• whether the father's sperm contains an x or y chromosome

• whether the mother's egg contains an x or y chromosome

• the age of the parents

• whether the mother's egg contains an xx or xy

Tags

NGSS.HS-LS3-1