Genetics Quiz #2
PUNNETT SQUARES
Question #1:
•A white flowered plantis crossed with a plantthat isheterozygous for thetrait. What percentageof theoffspring will havepurple flowers?
•A. 0%
•B. 25%
•C. 50%
• d.75%
•E. 100%
•Question #2: "Could a man with type B blood and a womanwith type AB produce a child with type O blood?“-must showpunnett square for grade.
•A. yes
•B. no
•C. I’m not sure
Question #3: The actual genes that an organism has areits __________.
•A. gene type
•B. phenotype
•C. genotype
•D. physical appearance
•E. karyotype
Question #4:
•In squirrels, the genefor gray fur (G) isdominant over the genefor black fur (g). If 50% of a large litter ofsquirrels are gray, theparental cross thatproduced this litter wasmost likely:
•(a.) GG x Gg
•(b.) Gg x gg
• (c.) GG x GG
• (d.) gg x gg
•E. non of them arecorrect
Question #5:
•In a certain species ofmouse, gray fur (G) isdominant over cream-colored fur (g). If a homozygousgray mouse is crossedwith a cream-coloredmouse, the genotype ofthe F1 generation willmost 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
Question #6:
•If the allele for greenpod color (G) isdominant over theallele for yellow podcolor (g), which of thefollowing genotypeswould a plant withyellow pods have?
•A. GG
•B. Gg
•C. gg
•D. ggg
•E. none of them
Question #7:
•In the cross-pollinationbetween a true-breeding yellow podplant and a true-breeding green podplant, where green podcolor is dominant, theresulting offspring (F1generation) will be...
Question #8:
•A man has blood typeA. His wife has bloodtype B. Their childrencan have blood type:
•(a) AB(b) A or B[c) A or B or AB[d) A or B or AB or O
Question #9: An individual who is heterozygous for twogenes is represented :
• (a) Aabb(b) AaBb
• (c) AAbb (d) AABb
Question #10: A couple has two girls. the probability ofa third girl baby is:
•A. 100%
•B. 50%
•C. 25%
•D. 0%
•E. 10%