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WorksheetsU7 Quizizz Dihybrid Punnett Squares Amoeba
Total questions: 6
Worksheet time: 9mins
The Punnett square above illustrates a dihybrid cross for cats. The traits are long tail (s), short tail (S), brown hair (B), and white hair (b). What are the genotypes of the parents that produces the probabilities shown in the Punnett square above?
A. Ssbb x ssBb
B. Ssbb x SSBB
C. SsBb x SsBb
D. SSBb x SsBb
Which of the following is a possible result of a dihybrid cross?
A 9:3:3:1 phenotypic ratio
A 3:1 phenotypic ratio
A 1:1 genotypic ratio
A 2:1:1 phenotypic ratio
Match each genotype to its description
HOMOZYGOUS DOMINANT
RR
HETEROZYGOUS
Rr
HOMOZYGOUS
RECESSIVE
rr
Which of the following is an example of a dihybrid cross?
Crossing two plants with different flower colors
Crossing two plants, one with yellow seeds and one with green seeds
Crossing two plants, one tall with yellow seeds and one short with green seeds
What is the expected genotype ratio for a monohybrid cross between two heterozygous parents (Aa x Aa)?
1:2:1 (AA:Aa:aa)
3:1 (AA:aa)
2:1:1 (AA:Aa:aa)
1:3 (Aa:aa)
