Please answer fast Consider a laboratory population that consists entirely of individuals with the same “repulsion” double heterozygous (diploid) genotype, Ab/aB. Assume the rate of recombination between the “A” and “B” loci is c = 1/ 4 . a) What are r, s, t and u in this population? What is D? b) What are r, s, t and u after 1 generation of random breeding? What is D? c) What are r, s, t and u after 5 generations of random breeding? What is D?

Please answer fast Consider a laboratory population that consists entirely of individuals with the same “repulsion” double heterozygous (diploid) genotype, Ab/aB. Assume the rate of recombination between the “A” and “B” loci is c = 1/ 4 . a) What are r, s, t and u in this population? What is D? b) What are r, s, t and u after 1 generation of random breeding? What is D? c) What are r, s, t and u after 5 generations of random breeding? What is D?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter13: Modern Understandings Of Inheritance

Section: Chapter Questions

Problem 6RQ: Which recombination frequency corresponds to independent assortment and the absence of linkage? 0...

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Extra Question Chapter 4 1. Consider the following cross concerning 4 different gene loci: AaBbCcDd (x) AabbCcdd From this cross, what is the probability of getting a progeny (offspring) with genotype AABbccdd? b. From this cross, what is the probability of getting a progeny (offspring) with genotype AabbCcDd? c. From this cross, what is the probability of getting a male progeny (offspring) with genotype aaBbCcdd? 2. Your neighbor has twelve children. One is blue eye color and short. Two are brown eye color and short. Two are blue eye color and tall. Seven look just like the parents; brown eye color with tall. What can you discover about the genetics of eye color and height of the children? a. How many traits are you dealing with? Each trait has phenotypes: Specify the phenotypes. b. What is the probability of the height of the children? What is the probability of the eye color of the children? (Refer to monohybrid punnett square slides 17-19) c. What are recessive traits based on the…
dd-ons Help в I U A Calibri 12 三三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!
DATA 29. R. W. Allard and W. M. Clement determined recombination rates for a ANALYSIS series of genes in lima beans (R. W. Allard and W. M. Clement. 1959. Journal of Heredity 50:63-67). The following table lists paired recombination frequencies for eight of the loci (D, W1, R, S, L, Ms, C, and G) that they mapped. On the basis of these data, draw a series of genetic maps for the different linkage groups of the genes, indicating the distances between the genes. Keep in mind that these frequencies are estimates of the true recombination frequencies and that some error is associated with each estimate. An asterisk beside a recombination frequency indicates that the recombination frequency is significantly different from 50%. Recombination frequencies (%) among seven loci in lima beans WI R Ms G D 2.1* 39.3* 52.4 48.1 53.1 51.4 49.8 WI 38.0* 47.3 47.7 48.8 50.3 50.4 51.9 52.7 54.6 49.3 52.6 26.9* 54.9 52.0 48.0 48.2 45.3 50.4 Ms 14.7* 43.1 52.0 * Significantly different from 50%.
An individual has the following genotype. Gene loci (A) and (B) are 15 m.u. apart. What are the correct frequencies of some of the gametes that car be made by this individual? Bl a O A. Ab = 7.5%; AB = 42.5% B. ab = 25%; aB = 50% O C. AB = 7.5%; aB = 42.5% O D. aB = 15%; Ab = F0% E. aB = 70%; Ab = 15% Reset Selection OMark for Review What's This?
Calibri 12 - BIU A Section 4: Monohybrid test cross A monohybrid cross is a mating where alleles of just one gene are tracked in the offspring. A test cross is a mating in which two parents (P generation) are crossed to give F1 (first filial generation) offspring, and then two F1 parents are crossed to give F2 (second filial generation) offspring. By tracking offspring through two generations, a test cross can reveal patterns of inheritance for particular genes. 9. In a cross between a black and a white guinea pig, all members of the F1 generation are black. The F2 generation is made of % black and % white guinea pigs. Diagram this cross, and list the genotypes and phenotypes for each generation.
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Assume that in a Hardy-Weinberg population, 9% of the individuals are of the homozygous Tecessive phenotyne. What percentage of the individuals would be expected to be heterozygous? What percentage homozygous dominent?
Hardy -Weinberg calculations 7. Red blood cells can possess a surface antigen called the Rhesus (Rh) factor. Rh+ (presence of the factor) is dominant over Rh- (absence). A village of population 400 was sampled and the frequency of the allele coding for Rh+ was found to be 0.356. a) Determine the number of individuals in the village who will be Rh- b) Determine the probability of being heterozygous
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Indicate the percentage of tetrads that would have 0,1, 2, 3, or 4 viable spores after Saccharomycescerevisiae a / α diploids of the following genotypesare sporulated:a. A true-breeding wild-type strain (with no mutations in any gene essential for viability).b. A strain heterozygous for a null (completely inactivating) mutation in a single essential gene.For the remaining parts of this problem, considercrosses between yeast strains of the form a × b, wherea and b are both temperature-sensitive mutations indifferent essential genes. The cross is conducted under permissive (low-temperature) conditions. Indicatethe percentage of tetrads that would have 0, 1, 2, 3, or4 viable spores subsequently measured under restrictive (high-temperature) conditions.c. a and b are unlinked, and both are 0 m.u. from thecentromere.d. a and b are unlinked; a is 0 m.u. from the centromere, while b is 10 m.u. from the centromere.e. a and b are 0 m.u. apart.f. a and b are 10 m.u. apart. Assume all…
Po es) 20 F1 KEY CROSS- RR X IT RESULTS- Rr GENOTYPE- RR IT Ơ 天 2 T 1. To determine the results of this experiment, complete the Punnett squares below by writing the correct allele(s) in the space provided P Generation PHENOTYPE- Round seeds x Wrinkled seeds F4 R 1, a r Rr F5 Rr RR Rr RR R X Rr F6 Rr Rr AaBbCcDdE AaBbCcDdE Aa BbCcD Aa BbCcD Heading 1 Normal No Spacing IT IT I F1 F2 F2 KEY CROSS-RrxRr RESULTS ace provid GENOTYPE 2. hat phenotypes are present in the F₁ generation? What gen'otypes are present? F7 3. What phenotypes are present in the F2 generation? In what ratio are they present? PHENOTYPE 4. Does your analysis support or refute Mendel's hypothesis of dominant and recessive inheritance? Explain. DII F8 Title F9 Aa BbCcDdEe Focus Subtitle E E 1
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