1. Genetics Quiz #2
PUNNETT SQUARES

2. Question #1:
A white flowered plant is crossed with a plant that is heterozygous for the trait. What percentage of the offspring will have purple flowers?
A. 0%
B. 25%
C. 50%
d.75%
E. 100%

3. Question #2: "Could a man with type B blood and a woman with type AB produce a child with type O blood?“-must show punnett square for grade.
A. yes
B. no
C. I’m not sure

4. Question #3: The actual genes that an organism has are its __________.
A. gene type
B. phenotype
C. genotype
D. physical appearance
E. karyotype

5. E. non of them are correct
Question #4:
In squirrels, the gene for gray fur (G) is dominant over the gene for black fur (g). If 50%       of a large litter of squirrels are gray, the parental cross that produced this litter was most likely:
(a.) GG x Gg 
(b.) Gg x gg  
(c.) GG x GG  
(d.) gg x gg
E. non of them are correct

6. Question #5:
In a certain species of mouse, gray fur (G) is dominant over cream-colored fur (g).       If a homozygous gray mouse is crossed with a cream-colored mouse, the genotype of the       F1 generation will most likely be  
(a.) 100% Gg 
(b.) 25% GG, 50% Gg, and 25% gg  (c.) 50% GG and 50% gg 
(d.) 75% Gg and 25% gg
(e) none of them

7. Question #6:
If the allele for green pod color (G) is dominant over the allele for yellow pod color (g), which of the following genotypes would a plant with yellow pods have?
A. GG
B. Gg
C. gg
D. ggg
E. none of them

8. Question #7:
In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod color is dominant, the resulting offspring (F1 generation) will be...
a) 1/4 green, 3/4 yellow b) all yellow
c) 1/4 yellow, 3/4 green d) all green
e. all brown

9. Question #8:
A man has blood type A. His wife has blood type B. Their children can have blood type:
(a) AB (b) A or B [c) A or B or AB [d) A or B or AB or O

10. (a) Aabb (b) AaBb (c) AAbb (d) AABb
Question #9: An individual who is heterozygous for two genes is represented :
(a) Aabb (b) AaBb
(c) AAbb (d) AABb

11. Question #10: A couple has two girls
Question #10: A couple has two girls. the probability of a third girl baby is:
A. 100%
B. 50%
C. 25%
D. 0%
E. 10%