5. The color of the hull in oat seeds are determined by two genes that independently assort. The black hullphenotype is due to a dominant allele A. The grey hull phenotype is due to a dominant allele B. However,the effect of B is only apparent in the aa genotypes. In other words, the presence of the A allele masks theeffect of the genotypes in the B gene. If neither A or B is present, the color of the hull would be white.You take a true breeding white strain (aabb) and cross it with a true breeding black strain (AABB). You letthe F1 generation self-fertilize and collected the F2 generation of seeds.a. In the diagram below, please fill out the blue areas. In the rectangles, please fill in genotypes. In theparentheses, fill in proportions of respective genotypes. In the lines, specify the respective phenotypes(black, grey or white)..b. Out of all the black hulled seeds, what proportions have the genotype AaBb? Please show allcalculations..yourPOF1F2(A_B_AABB(aaB()(A_bbaabb)aabb

a. In the diagram below, please fill out the blue areas. In the rectangles, please fill in…

Answered: 5. The color of the hull in oat seeds…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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(please explain clearly and provide correct answer)
The color of chickens is determined by interacting loci: AA or Aa give white, aaBB or aaBb give colored, and aabb produce white. Describe the epistatic interactions occurring between these two genes: A. aa is epistatic to B_, bb and bb are epistatic to A_,aa B. A_ is epistatic to B_,bb and bb is epistatic to A_,aa C. None of the above
2. In a species of beetles, individuals may be red, black, white or tan. Colour is controlled by a single gene with multiple alleles in a dominance series. Red (R) is dominant to black (RP), black is dominant to white (RW) and white is dominant to tan (r) (R > RD > RW > r). Colour variation in this species is a female sex-limited trait. Males carry the colour genes but are always phenotypically tan regardless of their genotype. What are the genotypes of the parents of the following cross? black female x tan males produces 151 red females: 49 black females: 61 tan females: 249 tan males
5. Flower color in snapdragons is inherited in an incompletely dominant manner. Assume that RR = red flowers, Rr = pink flowers, and rr = white flowers. What would be the genotype and phenotype ratios of the offspring of two plants with pink flowers?
1. In fruit flies, the phenotype for eye color is determined by a certain locus. E indicates the dominant allele and eindicates the recessive allele. The cross between a male wild-type fruit fly and a female white-eyed fruit flyproduced the following offspring.Wild-typeMaleWild-typeFemaleWhite-eyedMaleWhite-eyedFemaleBrown-eyedFemaleF1 0 45 55 0 1The wild-type and white-eyed individuals from the F1 generation were then crossed to produce the followingoffspring.F2 23 31 22 24 0(a) Determine the genotypes of the original parents (P generation) and explain your reasoning. You may usePunnett squares to enhance your description, but the results from the Punnett squares must be discussed inyour answer.(b) Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Showall your work and explain the importance of your final answer.(c) The brown-eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is,and discuss…
1. A new species of animal called the rekamriliob has been found in the wild. The lab you work in has been tasked with studying its genetics. So far, there have been 2 main phenotypes found in the wild. Through selective breeding, your lab has determined that the gene for purple color (P) is dominant to the gene for golden color (p). Another lab has determined that the thick limb trait is dominant to the thin limb variety. If you breed a purebred purple thick limbed rekamreliob male with a golden thin limbed female, you get 100% thick limed offspring that are purple in color. If you take two of these organisms and breed them together, please predict the following. Assume that rekameliobs lay an average of 32 eggs. The gametes produced if the genes are unlinked b. genes The expected numbers of the possible phenotype in the offspring with unlinked The gametes produced if the genes are linked (list all possibilities, and show which ones are the result of crossing over) d. List the…
3. In poultry, a gene C produces creeper (very short legs) in the heterozygous condition and is lethal in the homozygous condition. The c allele of the gene produces normal legs in the homozygous condition. Barring is due to a dominant sex-linked gene, B, and nonbarred to its recessive allele, b. In chickens, males are ZZ (similar to XX) and females are ZW (similar to XY). A creeper male homozygous for barring is mated with a creeper female who is nonbarred. What kinds of offspring can be expected from this cross and in what proportions will each kind occur?
1. Honeybee workers undergo a resistant behavioral pattern called hygienic behavior. Susceptible worker genotypes failed to remove the diseased larvae, so that the disease spread easily throughout the honeybee colony. a) When inbred lines of resistant genotypes were crossed with inbred lines of susceptible genotypes, the F1 worker bees showed unhygienic behavior.Is hygienic behavior dominant or recessive in these bees? Why?
3. If two gene pairs A and a and Band b are assorting independently with A dominant to a and B dominant to b, what is the probability of obtaining: a. an AB gamete from an AaBb individual? b. an AABB zygote from an AaBb x AaBb cross? C. an aaBb offspring from an AABB x aabb cross? d. a phenotype aB from an Aabb x aaBb cross? e. an ab gamete from an aaBB individual?
1. You are given a female F1 of unknown genotype. You cross the female fly to a homozygous male that has forked bristles and malformed eyes. The offspring of the cross is shown below: (Define symbols for your traits) Phenotype Forked bristles, normal eyes 752 Number Genotype Forked bristles, malformed 56 eyes Malformed eyes, normal bristles Normal eyes, normal bristles 820 64 a. What are the genotypes of the offspring? b. Based on the progeny, what were the genotypes of the F1 parents? What is the distance between for and mal?
8. In guinea pigs, the allele for black fur (B) is dominant over the allele for white fur (b). Similarly, the allele for straight hair (H) is dominant over the allele for having rough hair (h). Pure breeding rough haired guinea pigs with black fur were crossed with pure breeding straight haired guinea pigs with white fur. a. State the genotype and the phenotype of the F1 individuals produced as a result of this cross.b. Two F1 offspring were mated together. Calculate the expected ratio of phenotypes in the F2 generation.c. Show the completed Punnett square below.
6. There are two enzymes LDH1 and LDH2. The gene that encodes this enzyme is X-linked. You extract the enzyme from different cells in several people and carry out electrophoresis. Give the genotypes for each person Draw the banding pattern that you would expect in the gel. Male with Male with Female Female Heterozygous LDH1 gene homozygous female LDH2 homozygous for LDH2 for LDH1

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