Which of the following describes/represents an allele (select 2)
4 points
4
Question 2
2.
TT can be described by which of the following? (select 2)
4 points
4
Question 3
3.
Which of the following represents/describes a phenotype (select 2)
2 points
2
Question 4
4.
An allele from each parent genotype goes above or beside a box in a Punnett square. These alleles represent the genes found in the possible egg and sperm of the parents which are created in.....
2 points
2
Question 5
5.
The four boxes inside a punnett square contain the possible genetic combinations (genotypes) of the offspring that a set of parents can create through
2 points
2
Question 6
6.
Marcia and Millie Biggs are fraternal twins. They looked almost identical when they were born but their difference in skin tone became more apparent as they aged. As brown-eyed Millie started to become darker skinned, blue-eyed Marcia took on a lighter complexion and grew blonde, curly hair. The twins' mom is white, while their dad is Jamaican. Which of the following is true?
2 points
2
Question 7
7.
As the twins got older, their mother was diagnosed with breast cancer. Everyone has two copies of the BRCA1 gene, one copy inherited from their mother and one from their father. The BRCA1 gene follows a pattern complete dominance. The normal BRCA1 gene codes for normal functining breast cell growth. The mutated BRCA1 gene codes for cancerous breast cell growth.
N= normal functioning breast cell growth (DOMINANT)
n= cancerous breast cell growth (RECESSIVE)
What is the phenotype of an individual with the genotype Nn?
2 points
2
Question 8
8.
N= normal functioning breast cell growth (DOMINANT)
n= cancerous breast cell growth (RECESSIVE)
If an individual has breast cancer....what must their genotype be?
4 points
4
Question 9
9.
N= normal functioning breast cell growth (DOMINANT)
n= cancerous breast cell growth (RECESSIVE)
The twins' mom is homozygous recessive for BRCA1, the dad is heterozygous for BRCA1. What chance do the twins each have of having breast cancer? SHOW YOUR WORK AND SELECT AN ANSWER!
4 points
4
Question 10
10.
On the twins 10th birthday, they go to pick out a dog--> they have always wanted a dog with spots. The breeder explains they have two parent dogs. The mom is pregnant and the puppies will be here any day.
Fur color for dogs is codominant meaning in heterozygotes both fur colors show as spots.
One parent dog has black fur (BB) and the other white fur (WW).
What are the chances of an offspring with spots? SHOW YOUR WORK AND SELECT AN ANSWER!
2 points
2
Question 11
11.
For eye color, the allele for brown eyes (B) is dominant to the allele for blue eyes (b). If Marcia's dad has brown eyes which of the following COULD be his genotype? (select all that apply)
4 points
4
Question 12
12.
Background:
Millie has blue eyes
Marcia has brown eyes.
Mom is homozygous for blue eyes
Dad has brown eyes.
Use the information above to figure out what Dad's genotype is? SHOW YOUR WORK AND SELECT AN ANSWER.