Genetics Questions

Suppose a white-furred rabbit breeds with a black-furred rabbit and all of their offspring have a phenotype of gray fur. What does the gene for fur color in rabbits appear to be an example of?A. CodominanceB. Sex-linked inheritanceC. Incomplete dominanceD. Complete dominance

1. A woman has red-green colorblindness and she reproduces with a man who has normal vision. Which of the following statements is NOT true? 2. Red-green color blindness is X-linked in humans. If a male is red-green color blind, and both parents have normal color vision, which of the male's grandparents is most likely to be red-green color blind? Draw out the family pedigree below to help answer this question. A. Maternal grandmotherB. Maternal grandfatherC. Paternal grandmotherD. Paternal grandfatherE. Either grandfather is equally likelyTips: draw out the Punnett square, label which statements are T/F, then select the false statement. A. All of her sons will have red-green colorblindness.B. Her father has red-green colorblindness.C. All of her daughters will be carriers for red-green colorblindness.D. Half of her sons will have normal vision and half will be red-green colorblind.

3. Can human males be carriers for sex-linked traits?A. Yes, because both males and females can express recessive traitsB. Yes, because the Y chromosome can carry the recessive alleleC. No, because males only have one copy of the X chromosomeD. No, because males don't have sex chromosomes

A man with type B blood is involved in a paternity suit. The child who is supposed to be his has blood type A. Could this child be his biological child? Explain. A. Yes B. No

Imagine shirt striping pattern is a phenotypic character. What type of dominance relationship is exhibited by these shirt patterns?A. Complete dominanceB. Incomplete dominanceC. CodominanceD. Recessive

Is the white eye allele for Drosophilia dominant or recessive?

Based on the pedigree below describing the inheritance of an autosomal-dominant disease, what is the probability that person A will give birth to an affected child if she reproduces with a wild-type male? Draw a Punnett square to help answer this question once you figure out the genotypes and gametes produced by the individuals described. (see pedigree on question 5 in canvas)A. 75%B. 50%C. 100%D. 25%

In squash, color is determined by two genes that are epistatic. At the first gene, white squash (W) is dominant to colored squash (w). At the second gene, yellow (Y) is dominant to green (y). A squash that is green must have the genotype:A. WWyyB. WwyyC. wwyyD. A green squash can be either Wwyy or WWyy.

__________________ is a human genetic disease that results in cognitive impairment, but it can be prevented by following a strict low-protein diet.A. Cystic fibrosisB. Sickle-cell anemiaC. Huntington's diseaseD. Phenylketonuria

Mr. Trouble grows up and leaves home. He meets Angel, a cat with the normal number of toes on each paw. What is the probability that they will have a polydactyl kitten? See pedigree on LG 14 part 1 Q1A. 3/4B. 1/4C. 1/2D. 5/16

Folk singer Woody Guthrie died of Huntington's disease. Which statement below must be true? A. None of his children will inherit Huntington's disease.B. His sons will inherit Huntington's disease but not his daughters.C. His daughters will inherit Huntington's disease but not his sons.D. At least one of Woody Guthrie's parents must have had Huntington's disease also.

If a person with blood type A and a person with blood type B have a child, what are the possible blood types that child could have?A. Only type AB is possibleB. Types A and B are possibleC. Types A, B, AB, and O are possibleD. Types A, B, and AB are possible

11. A yellow lab female with brown nose and gums is mated with a brown (chocolate) male whose mother was yellow. What are their possible offspring?A. ½ yellow and ½ brown - all with brown noses.B. ½ yellow and ½ brown - all with black noses.C. ⅓ yellow and ⅓ brown ⅓ black - all with black noses.D. ½ brown with brown noses and ½ black with black noses.

In fruit flies (Drosophila), an autosomal gene controls body color. Individuals that are homozygous recessive have an ebony body color but are quite weak. Individuals that are homozygous dominant have a normal body color and normal physical condition and heterozygous individuals have a normal body color with increased physical condition. This is an example ofA. epistasis.B. heterozygote advantage.C. polygenic inheritance.D. multiple alleles.

3. A dominant allele, in genetics, is one that determines the phenotype of the heterozygote, and is not necessarily the most common allele in a population. For example, extra fingers or toes (polydactyly), dwarfism (Achondroplasia), and freckles are all caused by dominant alleles. True or false

You have two rose plants, both with pink flowers. You cross the two plants and are surprised to find that, while most of the offspring are pink, some are red and some are white. You decide that you like the red flowers and would like to make more. What cross would you perform to produce the most red flowered plants?A. Pink x pinkB. Red x whiteC. White x pink D. All of the above would produce the same number of red flowered plants

If a man with type AB blood reproduces with a woman with type O blood, what blood types would you expect in their children? What fraction would you expect of each type?

Based on the information presented in the tutorial, this pedigree would most likely fit one for which of the following diseases? See pedigree for 3A. Cystic FibrosisB. Huntington's DiseaseC. Sickle-Cell AnemiaD. Phenylketonuria

If one strand is '5 '3 what is the other

what does X- Ray diffraction determined? and which scientist stuided this