FGHAB C DET202015 10203020202020From the map given above, the observed frequency of recombinants between allelesof the B and H genes in crosses is most likely to be:a. 115%b. 50%c. 20%d. 75% in tetraploidse. cannot be inferred from the map

Genetic Map AnalysisMap Distances:The map shows genetic distances between markers labeled A through…

Answered: F G H A B C D E T 20 20 15 10 20 30 20…

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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A B C D E F 20 15 10 20 30 G 20 20 20 Using the map, what is the expected frequency of homozygous recessives (cd/cd) from a testcross of Cd/cD X cd/cd? . a. 20% b. 10% c. 5% d. this progeny class will not be formed e. none of the above
wwwwwwww wwwwwwwww If the progeny of the cross aaBB x AAbb is testcrossed, and the following genotypes are observed among the progeny of the testcross, what is the frequency of recombination between these loci? AaBb 135 wwwwwwww Aabb 430 www aaBb 390 wwwwwwww aabb 120 wwwwww
A researcher is interested in whether a disease gene is linked to an RFLP marker. A cross is made between pure breeding blind cavefish and pure breeding sighted cavefish. The lines are pure breeding. The resulting RFLP markers of the F1 offspring and the F2 (from an F1XF1 cross) offspring are shown. If the disease gene is 10 m.u. from the RFLP marker, what proportion of the F2 will have the gel pattern shown above AND be blind? Show your work If the disease gene is 10 m.u. from the RFLP marker, what proportion of the F2 will have the gel pattern above AND NOT be blind? Show your work
During a dihybrid cross involving two linked genes (two-point testcross), 8 flies showed a recombinant phenotype, whereas 192 flies showed the parental phenotypes. The distance between the genes determined by this cross will be very close to the distance that one would determine in a three-point testcross with an additional gene between the two genes! True False
4. In this pedigree of another family with hemophilia A. If the woman Il-2 has a son, what is the chance that he is affected? II B. If the woman Il-2 has a daughter, what is the chance 1 2 3 4 III that she is affected? -1 C. If the woman Il-2 has 2 sons, what is the chance that neither will be affected? D. What are the chances that the child of II-4 and Il-5 will be affected?
What is the most likely order of the linked genes R, S, and T if the distance between R and S is 22 cM, the distance between S and T is 8cM, and the distance between R and T is 14 cM? A. R S T B. T R S C. Cannot be determined D. S T R
If a two-point testcross of heterozygous females and homozygous-recessive males in Drosophila results in a calculated map distance of 10 cM between the two genes, the offspring of the cross must have shown four phenotypes in a ratio of a. 9:3:3:1 b. 1:1:1:1 c. 19:19:1:1 d. 3:3:1:1 e. 9:9:1:1
8. Answer the following questions for the two following pedigrees In Pedigree A, is the red highlighted trait dominant or recessive? Why? а. b. What is the genotype of individual C? In Pedigree B, is the red highlighted trait dominant or recessive? Why? а. d. What is the genotype of individual D? Pedigree A Pedigree B mele male : foncle I femole teffected D offected
1) a. Write out all of the gametes that an individual with the following genotype can produce W of of wt wit b. Will the genotypes be in equal or unequal proportions? a. Write out all of the gametes that an individual with the following genotype can produce with t B W. mot b. Will the genotypes be in equal or unequal proportions?
A dihybrid test cross is made between the genes C and D with the following results:
Based on the table below, what is the order of the genes examined? a b с d A B C/C B A Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer. A C B/B C A CAB/BAC Phenotype of testcross ССА/АСС A,C C A, B, C A B, C A, B B Genotype of hybrid gamete Abc ab C A B C Abc a B C abc е Not enough information A B C a B c # of progeny 388 5 50 64 51 47 5 390 1000
R d 4. (3) D R and D are linked; the distance between R and D is 10 cM. G is unlinked. Now, you test cross this individual. a) (1) What % of the progeny of the test cross will be dominant for both R and D (ignore G)? b) Now, using all 3 genes, figure out the % of each gamete and they should all add up to 100%. I did one for you (see below). Make sure you know how to do a problem like this. These gametes are: RDG Rdg rDG RdG 22.5% rDg RDg rdG

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F G H A B C D E T 20 20 15 10 20 30 20 20 20 20 From the map given above, the observed frequency of recombinants between alleles of the B and H genes in crosses is most likely to be: a. 115% b. 50% c. 20% d. 75% in tetraploids e. cannot be inferred from the map