Genetics Review

Hitchhiker's thumb (when your thumb bends backwards) is a recessive trait. If a person with hitchhiker's thumb has a child with a normal thumbedperson who's parent had a hitchhiker's thumb, what is the chance their child will have a normal thumb?

Gregor Mendel was the first person to study genetics. In one of his experiments, he crossed a pure bred yellow pea with a pure bred green pea. In the next generation, there were only yellow peas! How would you classify the green gene?

For dog breeders, gene MC5R is one to consider. This gene controls how much a dog will shed. To breed a dog that won't shed to much, the breeder needs to make sure the puppy will inherit two recessive genes. What type of inheritance is this?

Red cows can have white spots due to an incomplete dominant fur color gene. If a red cow gives birth to a red calf and a spotted calf, what color was its father?

Two healthy parents have a child with a rare disorder that they have not heard of before. What type of allele is the rare disorder?

Colorblindness is a sex-linked recessive trait (noted with a * on the affected chromosome). What is the genotype of a biological female who's father was colorblind?

Colorblindness is a sex-linked recessive trait (noted with a * on the affected chromosome). What is the chance of producing a colorblind child if you cross a heterozygous biological female with a colorblind biological male?

Hair color is an incomplete dominant trait with curly hair being dominant, straight hair being recessive, and curly hair being heterozygous. What hair texture will the children of a straight haired and curly haired person be?

Match it! Select the correct answer from the pull down...Good luck!