Genetics and Punnett Squares Quiz

In a genetic cross between homozygous wirehaired dogs and smoothhaired dogs, what is the genotype of all offspring?

• Big S Big S and Little S Little S

• Little S Little S

• Big S Little S

• Big S Big S

What is the phenotype of the offspring in the wirehaired and smoothhaired dogs cross?

• 75% have wire hair, 25% have smooth hair

• 50% have wire hair, 50% have smooth hair

• All have wire hair

• All have smooth hair

In the wood rats problem, what is the genotypic ratio of the offspring?

• 3:1

• 1:2:1

• 1:1

• 2:1

What phenotype is associated with the genotype Big H Little H in wood rats?

• Bringing home both shiny and dull objects

• No preference for objects

• Bringing home shiny objects

• Bringing home dull objects

In the Sigoro cacti problem, what is the genotype of a cactus with arms of different lengths?

• Little A Little A

• Big A Big A

• Big A Big A and Little A Little A

• Big A Little A

What is the phenotypic ratio of the Sigoro cacti offspring?

• 1:2:1

• 3:1

• 2:1

• 1:1

What percentage of Sigoro cacti offspring have arms of the same length?

• 50%

• 25%

• 75%

• 100%

In the Sigoro cacti problem, what is the genotypic ratio of the offspring?

• 2:2

• 1:2:1

• 3:1

• 1:1

What is the dominant trait in the Sigoro cacti problem?

• One arm longer than the other

• Arms of different lengths

• Arms of the same length

• No arms

What is the common grale?

• A breed of dog

• A species of blackbird

• A type of cactus

• A type of rodent