Chapter 6 & 7 Matters of Sex and Multifactorial Review

Alternative forms of a gene are called

• Alleles
• Homozygous
• DNA
• Genetics

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

Tags

NGSS.HS-LS3-1

When we say that a woman is a carrier for a genetic disease or disorder it means that

• she has 1 gene, but not the disorder
• she has 2 genes for the disorder
• she can pass the gene only to male children
• she can pass the gene only to female children

Tags

NGSS.HS-LS3-1

Why are men 16 times more likely to be color-blind than women?

• to be color-blind, you must have a Y chromosome
• to be color-blind, all of your X chromosomes must have the gene
• color-blindness is caused by testosterone
• color-blindness is caused by the same gene as baldness

Tags

NGSS.HS-LS3-1

If a gene is found only on the X chromosome and not the Y chromosome, it is said to be 

• sex-linked trait
• polygenic trait
• codominant trait
• incomplete dominance trait

Tags

NGSS.HS-LS3-1

Hemophilia is a recessive x-linked disorder.
Which genotype represents a female who is a carrier for hemophilia?

• X^HX^h
• X^hX^h
• X^HX^H
• X^hY

Tags

NGSS.HS-LS3-1

Hemophilia is a recessive x-linked disorder.
Which genotype represents a male with hemophilia?

• X^HX^h
• X^hX^h
• X^HY
• X^hY

Tags

NGSS.HS-LS3-1

What percentage of the female offspring will be a carrier for this recessive disease?

• 0%
• 50%
• 100%
• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

Looking at this pedigree, how many female family members are carriers?

• 1
• 3
• 10
• 7

Looking at this pedigree, how many family members have the disease?

• 4
• 7
• All
• None