Punnett Square Assignment

Use these four Punnett squares to answer the questions 1 - 8 below. There may be more than one answer. All appropriate Punnett squares must be identified to receive credit for a correct answer.

_______ 1. This square shows a cross in which dominance is incomplete.

 
_______ 2. This square predicts only two possible genotypes.

 
_______ 3. This square represents a cross between a homozygous tall plant and a homozygous short plant.

 
_______ 4. This square predicts all offspring will have the same phenotype.

 
_______ 5. This square shows a cross between two individuals with heterozygous genotypes.

 
_______ 6. This square predicts three out of four offspring will look the same.

 
_______ 7. This square predicts that all offspring will look the same.

 
_______ 8. This square shows a cross in which dominance is complete.

 
The following questions will require the drawing of a Punnett square.

 
9. In guinea pigs, black is dominant white. Cross a heterozygous black male with a homozygous white female.

10. In rabbits, dominance is incomplete for ear length. Cross a homozygous long-eared male with a homozygous short-eared female.