Mastery Assignment 5: Mastering Introduction to Biology Lab Quiz

Polydactyly is an autosomal dominant condition. Assuming two non-polydactyl individuals have a child, what is the chance of the child having polydactyly? 0% 25% 50% 100%

0%

In fruit flies, red eye color is dominant to white. A male fruit fly who is homozygous dominant for red eyes is mated with a female fruit fly who is heterozygous for eye color. What percentage of their offspring should have red eyes? 25% 50% 75% 100%

100%

You are creating a rose garden and aiming to get more variety in the different colors of rose you grow. You are able to grow pink roses when cross-pollination between red and white roses in your garden takes place. The red allele is dominant (R) to the white allele (r). If you cross two pink roses, what percent of the flowers in that generation would be red? 25% 50% 75% cannot be determined

25%

In hamsters, grey coat (G) is dominant to white (g), and brown eyes (B) are dominant to blue (b). A male hamster that is heterozygous for coat and eye color is crossed with a female hamster that is also heterozygous for coat and eye color. What is the phenotypic ratio of their offspring? 10 grey brown, 2 grey blue, 4 white blue 9 grey brown, 3 white brown, 3 white blue all white blue 9 grey brown, 3 grey blue, 3 white brown, 1 white blue

9 grey brown, 3 grey blue, 3 white brown, 1 white blue

A child is born to a mother with type A blood. The father's blood type is known to be B. Which of the following is NOT a possible genotype the child could have for blood type? AA BO AO none of these

AA

A child with type O blood is born to a mother with type A blood. What is the genotype of the mother? AO AA OO cannot be determined

AO

A child with type O blood is born to a mother with type A blood. What are the possible genotypes of the father? AO only OO only AO, BO, or OO OO or AO

AO, BO, or OO

Colorblindness is a recessive sex-linked trait. A woman is colorblind. If she is married to a man with normal vision, what are the chances of her offspring being colorblind or carriers? All offspring will be colorblind. All sons will be carriers, and all daughters will be colorblind. All offspring will be carriers. All sons will be colorblind, and all daughters will be carriers.

All sons will be colorblind, and all daughters will be carriers.

There has been a mix-up at the hospital, and it is unclear which infant belongs to which set of parents. Right now, the hospital has blood type information but has not done any DNA analysis. However, the parents are very upset and want to know immediately which child is theirs. You look at the blood type data and realize that you can quickly solve the problem. Based on the information below, which baby belongs to which parents? Baby 1, Type O Baby 2, Type B Mrs. Doe, Type A Mr. Doe, Type A Mrs. Jones, Type A Mrs. Jones, Type AB Baby 1 is a Jones, and Baby 2 is a Doe. Baby 1 is a Doe, and Baby 2 is a Jones. Baby 1 and 2 both belong to the Jones parents. Baby 1 and 2 both belong to the Doe parents.

Baby 1 is a Doe, and Baby 2 is a Jones.

A child is born to a mother with curly hair and a father with straight hair. As the child grows, she develops wavy hair. What is her genotype most likely to be? CC Cc cc cannot be determined

Cc

A father has dimples, the mother of his children does not, and all six of their children have dimples. Dimples (D) are dominant over no dimples (d). Give the probable genotypes of the parents and children, and the expected percent chance of getting the most likely genotype of the children. Dad DD, Mom Dd, Children Dd (100%) Dad DD, Mom dd, Children Dd (100%) Dad Dd, Mom Dd, Children Dd (50%) Dad Dd, Mom dd, Children Dd (50%)

Dad DD, Mom dd, Children Dd (100%)

grey is dominant to white in hamsters. A grey and white hamster were crossed, and they produced all grey hamsters. Then, these were crossed to make an F2 generation. 75% of the F2 generation hamsters were grey, and 25% were white. What was the genotype of the F1 generation grey hamsters? GG Gg gg white

Gg

In hamsters, grey coat is dominant to white, and brown eyes are dominant to blue. A male hamster that is heterozygous for coat and eye color is crossed with a female hamster that is also heterozygous for coat and eye color. What is the genotype of the male hamster? GgBb GGBb grey coat, brown eyes white coat, blue eyes

GgBb

In fruit flies, red eye color is dominant to white. A male fruit fly who is homozygous dominant for red eyes is mated with a female fruit fly who is heterozygous for eye color. What is the genotype of the male fruit fly? red RR Rr rrOne

RR

In fruit flies, red eye color is dominant to white. A male fruit fly who is homozygous dominant for red eyes is mated with a female fruit fly who is heterozygous for eye color. What is the phenotype of the male fruit fly? red RR Rr rr

Red

Colorblindness is a recessive sex-linked trait. Both the mother and father of a colorblind male appear to have normal vision. Based on this, what must be true about the mother? She must be a carrier of colorblindness. She must be homozygous dominant. She must be homozygous recessive. She cannot be the mother of the male child.

She must be a carrier of colorblindness.

In the 1950s, a woman sued a famous actor for parental support for her illegitimate child. Blood tests were done on all involved. The mother had type A blood, the child had type O blood, and the actor had type AB blood. What can you conclude? The actor was definitely the father. The actor was definitely not the father. The actor could have been the father. There is not enough information to determine if the actor was the father.

The actor was definitely not the father.

Colorblindness is a recessive sex-linked trait. A husband and wife both have normal vision. The wife gives birth to a colorblind daughter. What does this lead you to deduce? The wife is homozygous recessive. The husband is a carrier. The husband is homozygous dominant. The husband is not the father.

The husband is not the father.

In hamsters, grey coat is dominant to white, and brown eyes are dominant to blue. A male hamster that is homozygous recessive for coat and eye color is crossed with a female hamster that is also homozygous recessive for coat and eye color. What is the phenotypic ratio of their offspring? 10 grey brown, 2 grey blue, 4 white blue 9 grey brown, 3 white brown, 3 white blue all white blue 9 grey brown, 3 grey blue, 3 white brown, 1 white blue

all white blue

In hamsters, grey coat is dominant to white, and brown eyes are dominant to blue. A male hamster that is heterozygous for coat and eye color is crossed with a female hamster that is also heterozygous for coat and eye color. What is the phenotype of the male hamster? GgBb GGBb grey coat, brown eyes white coat, blue eyes

grey coat, brown eyes