*Genes A and B are linked. Individual plants homozygous for different combinations ofthese genes (AABB, aabb, AAbb, aaBB) were crossed at random to produce Fi plants. TheF₁ plants were self pollinated to produce the F2. The F₂2 progeny from six of the F₁ selfpollinations are listed below.F₁ Plant1234S2.Number of F₂ plants in each phenotypic classABAbaB9810343.6410650992581042331a. Determine the genotype of the F₁ that produced each F2 population.1.ab3218MacBook Pro3625.6.b. Calculate the recombination frequency between genes A and B.100Linkage Problem Set13. Assume that height and eye color are inherited as follows. T- tall, t- short and B- blue, b-brown. Genes T and B are linked on chromosome 1, 20 map units apart. A tall brown eyedwoman marries a short blue eyed man. They have a son that is tall and blue eyed. This manmarries a short brown eyed woman.a. Diagram the arrangement of the alleles on the two chromosome 1's of the tall blueeyed man.IFocus

Introduction : In genetics we all know that the genes which are linked are supposed to be larger in…

*Genes A and B are linked. Individual plants homozygous for different combinations of these genes (AABB, aabb, AAbb, aaBB) were crossed at random to produce Fi plants. The Fi plants were self pollinated to produce the F2. The F2 progeny from six of the F₁ self pollinations are listed below. F₁ Plant 1 2 3 4 S 6 2. 3. Number of F₂ plants in each phenotypic class AB Ab aB 98 4. 64 106 50 99 10 34 25 8 104 23 31 ab 32 18 a. Determine the genotype of the F₁ that produced each F2 population. 1. 36 2 5. 6. b. Calculate the recombination frequency between genes A and B. I

*Genes A and B are linked. Individual plants homozygous for different combinations of these genes (AABB, aabb, AAbb, aaBB) were crossed at random to produce Fi plants. The Fi plants were self pollinated to produce the F2. The F2 progeny from six of the F₁ self pollinations are listed below. F₁ Plant 1 2 3 4 S 6 2. 3. Number of F₂ plants in each phenotypic class AB Ab aB 98 4. 64 106 50 99 10 34 25 8 104 23 31 ab 32 18 a. Determine the genotype of the F₁ that produced each F2 population. 1. 36 2 5. 6. b. Calculate the recombination frequency between genes A and B. I

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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Topic: Trihybrid Cross, Height in merigonias is determined by three unlinked genes that act additively. Each has two alleles, one compltely dominant allele(A,B or C) that makes plants taller and one recessive allele that makes plants shorter. Do the corss AaBbCc X AaBbCc. The fraction of The F1 progenty will be ? Pls explain it with more details. thanks
A snapdragon with pink petals, black anthers, and longstems was allowed to self-fertilize. From the resultingseeds, 650 adult plants were obtained. The phenotypesof these offspring are listed here.78 red long tan26 red short tan44 red long black15 red short black39 pink long tan13 pink short tan204 pink long black68 pink short black5 white long tan2 white short tan117 white long black39 white short blacka. Using P for one allele and p for the other, indicatehow flower color is inherited.b. What numbers of red : pink : white would havebeen expected among these 650 plants?c. How are anther color and stem length inherited?d. What was the genotype of the original plant?e. Do any of the three genes show independentassortment?f. For any genes that are linked, indicate the arrangements of the alleles on the homologous chromosomes in the original snapdragon, and estimate thedistance between the genes
In the left-hand part of Figure 2-4, the red arrows showselfing as pollination within single flowers of one F1plant. Would the same F2 results be produced by crosspollinating two different F1 plants?
Tenera is grown for consumption seeds not as a source of oil palm seeds so it is not recommended to plant uncertified fruit/seeds, why? Explain by making crosses starting from parental (Dura and Pisifera) to F2 complete with pictures of the fruit and its gene structure and the cross chessboard.
You successfully isolate an hsf2/hsf2; hsf3/hsf3 double mutant stock. You cross this plant to an hsf1/hsf1 plant and then self-pollinate the F1. You want to recover at least 10 triple mutant homozygous to evaluate the phenotype. How many plants do you need to genotype to expect to recover 10 triple mutant plants?
yellow normal-54 yellow opaque-19 white normal- 15 white opaque-8 1. Diagram the hybrid cross showing the segregation of genes responsible for endosperm type andendosperm color in corn. Indicate all applicable gene relationships. Indicate the genotypes,phenotypes and gametes of individuals involved in all crosses. Derive the genotypic and phenotypicratios of the F2 generation using the branching method. 2. Interpret the result of your Chi-squared test.1. How many gene pairs wereresponsible for endosperm type andendosperm color in corn?2. What gene interaction was presentin the genes for the said traits?3. What are the dominant phenotypesfor each trait?4. What are the recessive phenotypesfor each trait?5. Are the genes independentlysegregating?6. What are the possible genotypes ofthe P1 and P2 that produced this F2population?7. Indicate your gene notation 3. Give the possible genotypes of each of the observed phenotypes in your sample. Determine thepossible genotypes of the parents of…
In corn, a triple heterozygote was obtained carrying themutant alleles s (shrunken), w (white aleurone), andy (waxy endosperm), all paired with their normal wildtype alleles. This triple heterozygote was testcrossed, andthe progeny contained 116 shrunken, white; 4 fully wildtype; 2538 shrunken; 601 shrunken, waxy; 626 white;2708 white, waxy; 2 shrunken, white, waxy; and 113 waxy.a. Determine if any of these three loci are linked and,if so, show map distances.b. Show the allele arrangement on the chromosomesof the triple heterozygote used in the testcross.c. Calculate interference, if appropriate.
At the molecular level (with regard to loss-of-function alleles), explain why the ttvv homozygote has an ovate seed capsule.
More Crosses with Pea Plants: The Principle of Independent Assortment Consider the following cross: P1: AABBCCDDEE aabbccddee F1: AaBbCcDdEe (self-cross to get F2) What is the chance of getting an AaBBccDdee individual in the F2 generation?
Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are dominant to green (y). What are the possible genotypes and phenotypes for a cross between PpYY and ppYy pea plants? How many squares would you need to complete a Punnett square analysis of this cross?
Given : The given plant is triploid. Symbol For purple = P For yellow seed = Y For round seed = R Answer 1. The Probability of PpYyRr = 8/64 = 1/8 2. The Probability of PPyyRr = 4/64 = 1/16 3. Probability of at least exhibiting wrinkled seeds = 32/64 = 1/2 4. Probability of at least exhibiting purple flowers = 48/64 = 6/8 = 3/4 QUESTION: Answer the remaining question (5, 6, 7)
Let P = purple flowers and p = white, and T = tall plants and t = dwarf. What are the genotypes of the gametes that are produced by a plant that is heterozygous for both traits? hint* This is a dihybrid self cross of an F1 heterozygous generation. O Tt, TT, tt, Pp, PP, and pp P, p, T, and t PT, Pt, pT, and pt PT and pt