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WorksheetsPunnett Practice
Total questions: 12
Worksheet time: 19mins
A brown cat (BB) has a litter of kittens with a white cat (bb). What percent of their kittens will be brown?
10%
25%
75%
100%
Mom is heterozygous and has brown eyes. Dad is homozygous recessive for blue eyes. What percent of their children will have blue eyes?
100%
25%
50%
75%
Cross a black fowl with a white fowl. What is the phenotype ratio?
Complete a cross between 2 speckled flowers and find the genotype ratio.
What is the Genotype for Homozygous "B" allele
IᴬIᴮ
Iᴮi
IᴬIᴬ
IᴮIᴮ
Punnett Square: A man is homozygous for the B allele, and a woman is type O. What are ALL the possible blood types of their baby?
IᴮIᴮ
ii
IᴬIᴬ
Iᴮi
Mrs. Canal is type A and Mr. Canal is type O. They have three children named Greg, Rosalind and Biff. Greg is type 0, Rosalind is type A and Biff is type AB...
What is Mr. Canal's Genotype?
IᴬIᴬ
IᴮIᴮ
IᴬIᴮ
ii
Mrs. Canal is type A and Mr. Canal is type O. They have three children named Greg, Rosalind and Biff. Greg is type 0, Rosalind is type A and Biff is type AB...
Can BIFF be there son? Explain
Yes because he has a portion of A in his blood like his mom
Yes because his dad is type O and that is a universal donor
No because his sister is type A blood
No because neither parent has the B allele
Two parents think their baby was switched at the hospital. The mother has blood type O, the father has blood type AB and the baby has blood type B.
Complete a punnett square and then answer the question. Was the baby switched at birth? (Do they have a baby that is not theirs? )
No, the baby is type B which is possible when Dad is AB
No, the baby is theirs - it has type B just like the mom
Yes - neither parent is type B so it must have been switched
