Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 13, Problem 6RQ
Which recombination frequency corresponds to independent assortment and the absence of linkage?
- 0
- 0.25
- 0.50
- 0.75
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Which recombination frequency corresponds to independent assortment and the absence of linkage? a. 0 b. 0.25 c. 0.50 d. 0.75
Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment? a. 0 b. 0.25 c. 0.50 d. 0.75
If two genes are unlinked the recombination frequency will be?
25%
50%
75%
100%
Chapter 13 Solutions
Biology 2e
Ch. 13 - Figure 13.3 In a test cross for two...Ch. 13 - Figure 13.4 Which of the following statements is...Ch. 13 - Figure 13.6 Which of the following statements...Ch. 13 - X-linked recessive traits in humans (or in...Ch. 13 - The first suggestion that chromosomes may...Ch. 13 - Which recombination frequency corresponds to...Ch. 13 - Which recombination frequency corresponds to...Ch. 13 - Which of the following codes describes position 12...Ch. 13 - In agriculture, polyploid crops (like coffee,...Ch. 13 - Assume a pericentric inversion occurred in one of...
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- Which recombination frequency corresponds to perfect linkage and violates the law of independent assortment? 0 0.25 0.50 0.75arrow_forwardExplain why the value of the recombination frequencybetween any two genes is limited to 50%.arrow_forwardThe 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%arrow_forward
- 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 *arrow_forwardWhat 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.arrow_forwardThe 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%arrow_forward
- The parent in a crow AaBb and aabb respectively: Draw diagram for each showing the two different genes are linked. Show how the offspring in the coress are produced and clearly label the recombinants.arrow_forwardThe recombination frequency between genes a and b is 20%. What is the frequency of crossing over between genes a and b? Explain your reasoning.arrow_forwardSubject: Genetics The map distance between locus 1 and locus 2 is 12.6 map units, and the distance between locus 2 and locus 3 is 9.8 map units. The actual frequency of the double cross over from 500 progeny is 2. The value then of the interference is a. 0.806 b. 0.981 c. 0.675 d. 0.903 e. none of the above SHOW THE SOLUTIONarrow_forward
- Explain the following pairs of concepts and briefly describe their major difference(s) 1. Recombination fraction & genetic distance.arrow_forwardCalculate 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%) e. 0.50 (50%)arrow_forwardIn the sample data from Sordaria shown in the picture: Count the total number of first and second segregations and calculate map units using equation below: (recombinant refers to second division segregation and non-recombinants are first division segregations)arrow_forward
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