Calculate the recombination frequency from the following data collected from a breeding experiment with butterflies. Parent 1: dihybrid, long legs and blue wings. Parent 2: double recessive, short legs and white wings Offspring: 50 long legs and white wings 200 long legs and blue wings 50 short legs and blue wings 200 short legs and white wings Recombination frequency is: Select one: a. 0.25 (25%) b. 0.10 (10%) c. 0.20 (20%) d. 0.33 (33%)

Calculate the recombination frequency from the following data collected from a breeding experiment with butterflies. Parent 1: dihybrid, long legs and blue wings. Parent 2: double recessive, short legs and white wings Offspring: 50 long legs and white wings 200 long legs and blue wings 50 short legs and blue wings 200 short legs and white wings Recombination frequency is: Select one: a. 0.25 (25%) b. 0.10 (10%) c. 0.20 (20%) d. 0.33 (33%)

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 2QP: Hemophilia and color blindness are both recessive conditions caused by genes on the X chromosome. To...

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The following recombination frequencies are calculated for four linked genes: Genes Recombination Frequency A and B 2% B and C 17% C and D 4% A and C 15% B and D 13% What is the frequency of crossing-over between A and D? Select one: a. 8% b. 11% c. 6% d. 15%
The following recombination frequencies are calculated for four linked genes in the image attached: What is the frequency of crossing-over between A and D? a. 8% b. 6% c. 15% d. 11%
What would be the gene map for the following genes with known recombination frequencies? D and A is 5.1 cM, A and C is 15.8 cM, A and B is 7.8 cM, C and D is 10.7 cM, and C and B is 8.0 cM.
In a diploid plant species, an F1 with the genotype Mm Rr Ss is test crossed to a pure breeding recessive plant with the genotype mm rr ss. The offspring genotypes are as follows: Genotype Number Mm Rr Ss 687 Mm Rr ss 5 Mm rr Ss 68 Mm rr ss 196 mm Rr Ss 185 mm Rr ss 72 mm rr Ss 8 mm rr ss 679 Total 1900 1. Calculate the recombination frequency between each pair of genes
Using Excel produce a plot that shows the decay of D over time (for 50 generations) for four different recombination frequencies: r = 0.5 (independent assortment) r = 0.25 r = 0.1 r = 0.01 *show graph and plot *
Consider the genetic map below. (a) In a total of 1000 observed progeny, how many would be expected to be parental, non-recombinant? (b) If the total number of observed double-crossover recombinant progeny is 0, what is the interference? Show step by step work for full credit. A-------10cm-----B—2.5cm----C
Given the experimental set up below, and knowing the genes for stalked eyes (st) and black bodies (b) are on the same chromosome and recessive to wild type (un-stalked eyes and light body). F2= a=489, b=56, c=497, d=49 A) How many recombinant animals are in the F2 generation? B) ( How far apart, (as both a % recombination and in map units) are the stalk eyed and black bodied genes on this chromosome?
Consider the genetic map below. (a) In a total of 1000 observed progeny, how many would be expected to be parental, non-recombinant? (b) If the total number of observed double-crossover recombinant progeny is 0, what is the interference? Show step by step A-------10cm-----B—2.5cm----C
In a diploid plant species, an F1 with the genotype Mm Rr Ss is test crossed to a pure breeding recessive plant with the genotype mm rr ss. The offspring genotypes are as follows: Genotype Number Mm Rr Ss 687 Mm Rr ss 5 Mm rr Ss 68 Mm rr ss 196 mm Rr Ss 185 mm Rr ss 72 mm rr Ss 8 mm rr ss 679 Total 1900 1. Why is the recombination frequency for the outside pair of genes not equal to the sum of the recombination between the adjacent gene pairs?
When true-breeding mice with brown fur and short tails (BBtt) were crossed to true-breeding mice with white fur and long tails (bbTT), all the F1 offspring had brown fur and long tails. The F1 offspring were then crossed to mice with white fur and short tails (bbtt). The fur gene and the tail length gene are 7 cM apart. Part a Which of the following F2 offspring are recombinant? (Select all that apply.) a) White fur, short tail b) Brown fur, long tail c) You need more information to answer this question. d) White fur, long tail e) Brown fur, short tail Part b Using the information given in Part a, if there were 400 mice in the F2 generation, how many do you expect would have white fur and long tails? a) 25 b) 186 c) 14 d) 372 e) 28 f) 75
You are working with a new species of spider in the lab. Wild type spiders have black legs and long mandibles. Mutants have black/brown striped legs and short mandibles. You perform a cross between wild type and mutant spiders. Your results : 5,502 wild type; 5,877 mutant; 69 black/brown striped, long mandibles; 52 black, short mandibles. What information does the recombination frequency tell you about the traits? (You will need to solve the RF first if you haven't done so in the other problem.) * A. Crossing over occurs frequently between the two traits. B. They are unlinked genes. C. They are located on separate chromosomes D. They are located very close together on the same chromosome.
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