Advanced Genetics Review

How many alleles (letters) do each person carry for a trait?

• 1
• 2
• 3
• 4

How many alleles (letters) does a child get from each parent for each trait?

• 1
• 2
• 3
• 4

Dominant alleles are represented by a:

• Male gene
• lowercase letter
• recessive trait
• capital letter

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

In a pedigree, what shape represents a male?

• circle
• square
• triangle
• diamond

What gender has an X and a Y chromosome?

• male

• female

• all of the above

In the second generation-how many people are carriers of the trait?

• 2
• 3
• 5
• 6

Why do all the daughters in Generation II carry the colorblind gene?

• Because mom passed on the gene.
• Because dad passed on the X chromosome.
• Because their brother has it.
• Because their brother gave it to them.

Why does individual IV-7 have colorblindness?

• Because his mom is a carrier.
• Because his dad has it.
• Because his siblings have it.
• Because his uncle has it.

What percentage of the offspring will have this recessive disease?

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3