Genetics

Front

A section of DNA that codes for a trait is called

Back

gene

Front

AA is an example of

Back

homozygous dominant

Front

Aa is an example of

Back

heterozygous

Front

Which of the following is a genotype? long hair, brown eyes, Gg, tall

Back

Gg

Front

A heterozygous tall (Tt) plant is crossed with a heterozygous tall (Tt) plant. What chance of the offspring will be short?

Back

1/4

Front

In a population of dogs, the allele for C curly hair is dominant over the allele for c straight hair. If both parents are heterozygous for curly hair, what percentage of their offspring are expected to have straight hair?

Back

25%

Front

In pea plants a tall trait is dominant to short. What is the genotypic ratio if two heterozygous plants are crossed?

Back

3:1

Front

If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?

Back

100%

Front

If a dog is homozygous dominant for brown eyes crosses with a dog that is heterozygous, what is the percent of having puppies with brown eyes?

Back

100%

Front

If a person is homozygous dominant for brown eyes crosses with a person heterozygous traits, what is the chances of the possible genotypes? Options: 100% BB, 50% BB : 50% Bb, 75% BB : 25% Bb, 100% bb

Back

50% BB : 50% Bb