Genetics and Pedigrees

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

• 1
• 3
• 10
• 7

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

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

• 4
• 7
• All
• None

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

I have 2 X chromosomes. What am I?

• Male
• Female

I have 1 X chromosome and 1 Y chromosome. What am I?

• Male
• Female

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

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

Tags

NGSS.HS-LS3-1

Colorblindness is an X-linked disorder. Can a male ever be a carrier for this disorder?

• Yes
• No

Allison's father was colorblind. She realizes that she received his defective X-chromosome. However, she is not color blind. She is a what?

• Carrier
• Colorblind female
• Non-carrier
• Incapable of seeing purple

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A colorblind mother has four sons. What is the probability that all four of her sons will be colorblind?

• 100%
• 50%
• 25%
• 12.5%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A couple, with the genotypes:
X^H X^h
and
X^H Y
have children. If X^h is hemophilia, will any of the male offspring be hemophiliacs?

• Yes, there's a 50% shot that male offspring will be
• Yes, all of the male offspring 
• No, none of the male offspring will be hemophiliacs
• This couple is incapable of having male offspring

In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?

• 50%

• 0%

• 25%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS4-3