Please help asap 2. Read the scenario presented below. Answer the follow-up questions using the information here.Background:Most fruit flies are identical, with yellow-brown bodies, red eyes, and straight wings, butoccasionally a different looking fly will hatch. You have identified an unusual fly – one withbrown eyes. It is pure-bred. You want to know whether brown eyes are dominant over orrecessive to red eyes.Experiment:You cross a purehred brown-eyed fly with a purebred red-eyed fly. All, or 100%, of the offspringhave red eyes. Then you take two of these offspring with red eyes, cross them and get 75% redeyes and 25% brown eyes.(adapted from Şavas-Miller and Levine) B. Create the two Punnett squares from the experiment that will achieve the results of the experimentabove. Record the genotypic and phenotypic ratios produced from both crosses. You may chooseyour own letter to represent your allele. (Level 7-8)*hint: use the "draw" tool in Microsoft Word. Be sure to show all work to gain full points.GenotypicPhenotypic Ratio:Genotypic Ratio:Phenotypic Ratio:

Genes are the functional units of nucleic acid (DNA). DNA is the genetic centre of cell. It stores…

B. Create the two Punnett squares from the experiment that will achieve the results of the experiment above. Record the genotypic and phenotypic ratios produced from both crosses. You may choose your own letter to represent your allele. (Level 7-8) *hint: use the "draw" tool in Microsoft Word. Be sure to show all work to gain full points. Genotypic Ratio: Phenotypic Ratio:

B. Create the two Punnett squares from the experiment that will achieve the results of the experiment above. Record the genotypic and phenotypic ratios produced from both crosses. You may choose your own letter to represent your allele. (Level 7-8) *hint: use the "draw" tool in Microsoft Word. Be sure to show all work to gain full points. Genotypic Ratio: Phenotypic Ratio:

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter12: Mendel's Experiments And Heredity

Section: Chapter Questions

Problem 7RQ: Imagine you are performing a cross involving seed color in garden pea plants. What Fi offspring...

See similar textbooks

Similar questions

3. In the X linked fruit fly cross , why were the adult flies in the XRXr x XRY vial removed? 1. Adult fruit flies are known to eat their larvae and this would throw off the count 2. The goal was to count the phenotypic ratio of the offspring; therefore the parental generation must be removed. 3. The adult flies would eat all the food and the offspring would die before a count could be made
3. A wild flower has a dominant allele of red-flower color which is incompletely dominant over the allele of white-flower color. Draw the Punnett square for the cross. Identify the flower color phenotypes and theoritical percentage.
2.In dogs, there is a hereditary deafness caused by a recessive allele, d. A kennel owner has a male dog that she wants to use for breeding purposes if possible. The dog can hear, but the owner is unsure of the genotype. She does a testcross (crosses it to a homozygous recessive dog), and two of the five offspring are deaf. This means that the male dog A.has the genotype DD B.has the genotype Dd C.is still of unknown genotype since there were offspring of both deaf and hearing phenotypes. D.has the genotype dd
Refer to question 5. Assuming complete dominance, the F2 generation will show a phenotypic ratio of ________. a. 3:1 b. 9:1 c. 1:2:1 d. 9:3:3:1 Question No. 5 5. The offspring of the cross AA aa are ________. a. all AA b. all aa c. all Aa d. half are AA and half are aa
1. An albino man whose parents are both normal marries a woman ome of whose parents is normal and the other albino. She has an albino sister. The couple has a normal son. a.Is albinism a dominant or a recessive trait? Explain your answer B. Give genotypes of all the persons involved. C.The couple plans to have more kids. What is the probability of their second child being normal
4. The ruffed chicken has an under-chin wattle. A smooth wattle (S) is dominant over a wrinkled wattle (s). A red wattle (HR) is incompletely dominant with a white wattle (HW) so that an individual with HRHW will have a pink wattle. A chicken with a wrinkled red wattle is mated to a homozygous chicken with a smooth white wattle. What is the genotype and phenotype of the chicks?
Using Drosophila notation: A.) Diagram the genotype of a female fly that is recessive for apterus (ap, chromosome 2), heterozygous wild-type for black (b, chromosome 2), recessive for forked (f, x-chromosome), and homozygous wild type for rosy (ry, chromosome 3). B.) Diagram the genotype of a male fly that is heterozygous for clot (ct) eyes (an autosomal gene) and has yellow (y) body color (x-linked gene).
1. In a particular bird species, the tips of the feathers are tinged with blue, white, or silver. The BB genotype calls for blue-tipped feathers. The WW genotype calls for white-tipped feathers. The BW genotype calls for an intermediate with silver-tipped feathers. A mating occurs between a blue-tipped bird and a white-tipped bird. What types of offspring would be expected? Give the genotypes and phenotypes of the possible offspring and the probability of each. 2. The bird species described in question 5 has an ornamental plumage on its head. The plumage feathers are either flexible or stiff. The allele for flexible plumage is dominant over the allele for stiff plumage. A male who is heterozygous for plumage and has silver-tipped wings mates with a female who has stiff plumage with silver-tipped wings. What types of offspring would be expected from this cross? Give the probability of each. 3. In some cats, the gene for tail length shows incomplete dominance. When a cat with a…
1. An albino man whose parents are both normal marries a woman one whose parents is normal and the other albino. She has an albino sister. The couple has a normal son. a. Is albinism a dominant or a recessive trait? Explain your answer. b.Give genotypes of all the persons involved. c. The couple plans to have more kids. What is the probability of their second child being normal?
Fill in the punnett square and answer the questions. R = round, r = wrinkled, Y = yellow, y = green. Ry Ry ry ry RY Ry RY Ry Genotype: RRYy phenotype: yellow and round 2. Is this a monohybrid or a dihybrid cross? 3. What are the two dominant alleles? 4. What are the two recessive alleles?
1)If both parents are heterozygous, which genotypes are possible for their offspring? choose all that apply A)homozygous dominant B)heterozygous C)homozygous recessive D)more information would be needed
1. Two people with wavy hair have a straight-haired child. Wavy hair is a dominant. What are the genotypes of the parents? What is the possibility that their next child will have wavy hair? Show the genotype and phenotype ratios that result from the above cross. Show the Punnett square.