OMutation-selectionbalanceSuppose that one allele A₁ mutates to another allele A2 at some rate, μ.Suppose as well that A₁ is dominant over A2 such that A₁A1 and A₁A2 bothhave the same fitness, but that individuals that are homozygous recessive(A2A2) for the mutant allele A2 are less fit than the dominant genotype bysome amount s, the selection coefficient. In this case, A2 mutant alleles comeinto the population at rate µ, and are removed from the population onlywhen the show up in homozygous genotypes. The gory mathematical proofcan be found in Box 7.8, which tells us that:O■Example: Suppose A₁ mutates to A2 at rate 0.005, but A₂A2 homozygousrecessives are 50% less fit (s = 0.5) than either A₁A1 or A₁A2. What are theexpected equilibrial abundances of A₁ and A2?μ = 0.005S = 0.5p* = 1-sqrt(µ/s) = 1-sqrt(0.005/0.5) = 0.9= sqrt(µ/s) = sqrt(0.005/0.5) = 0.1●*p = = 1-sqrt(µ/s)q* = sqrt(μ/s)●Question: Suppose A₁ mutates to A2 at rate 0.01, but A₂A2 homozygousrecessives are 40% less fit (s = 0.4) than either A₁A1 or A1A2. What are theexpected equilibrial abundances of A₁ and A₂?8

Hardy Weinberg Equilibrium explains how allele and gene frequency remain same in the population from…

Answered: O ■ Example: Suppose A₁ mutates to A2…

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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If A-P width is the most important regulator of digit number, which basic cellular mechanism would you expect to be correlated with digit number?
4) In frost moths, two alleles of one gene determine the character difference of spotted versus striped wings and two alleles of a separate, independent gene determine the character difference of orange wing background versus white wing background. The results for four matings of moth phenotypes are shown in the image attached. a) Assign the letter “s” to the wing pattern gene and letter “w” to the background color gene. Write in the capital letter for the dominant phenotype and the lower case letter for the recessive phenotype. Also, write whether each allele is dominant (D) or recessive (R). Wing pattern gene: Spotted - letter assignment:____ - dominant or recessive:____ Striped - letter assignment:____ - dominant or recessive:____ Background color gene: orange: - letter assignment:____ - dominant or recessive:____ white: - letter assignment:____ - dominant or recessive:_____ b) Based on the four matings in Question 4: What are the genotypes of each parent in each cross? If more…
7. In humans, the alleles for blood type are designated I^ (A-type blood), I ^ B (B-type blood) and i (O-type blood). What are the expected frequencies of phenotypes in the following matings? Draw a Punnett square showing the results for a). a) heter A x heter B: %A %B %0 %AB b) I ^ A * I ^ B * I ^ A_{i} : c) I ^ A * I ^ A * I ^ B * I ^ B : d) ABO :
For the following genotype, indicate if beta-galactosidase will be made in the presence of lactose and absence of lactose. P₁+1+PL+OcZ/ P₁1 P₁O+Z+ O O O beta-galactosidase will be made in both the presence and absence of lactose (+; +) beta-galactosidase will be made in the presence but not in the absence of lactose (+;-) beta-galactosidase will not be made in the presence but will be made in the absence of lactose (-; +) beta-galactosidase will not be made in either the presence or absence of lactose (-;-)
Aav AaBbCc Normal No Spacing Heading 1 Paragraph Styles In man, two abnormal conditions, cataracts (C) in the eyes and excessive fragility (F) in the bones, seem to depend on separate dominant genes located on different chromosomes. Normal vision and normal bones are recessive traits. A man with cataracts and nomal bones, whose father had normal eyes, married a woman free from cataracts but with fragile bones. Her father had normal bones. 11. What is the genotype of the man with cataracts and nomal bones? What is the genotype of the woman with normal vision and fragile bones? What type of offspring might this couple expect? Genotypes Phenotypes What is the probability that their first child will, (a) be free from both abnormalities (b) have cataracts but not fragile bones (c) have fragile bones but not cataracts (d) have both cataracts and fragile bones? lili
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3
What type of linkage is shown here? CH₂OH H K ОН H ОН H O Alpha (1,4) O Beta (1,2) Beta (1,6) O Alpha (1,2) O Alpha (1,6) ان O Beta (1,4) ОН CH₂OH ОН ОН H H CH2OH
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2. 235O 4) Q7. Haemophiliacs possess a non-functional form of the gene responsible for the production of blood clotting factors. Shown below is the occurrence of haemophilia in one family. = male = female = male haemophiliac 7. 8. 5. 9. 3. 11 12 Usingthe following symbols: H = dominant allele h = recessive allele 1) State the genotypes of the following individuals. Individual Genotype 1. 6. 2) On the basis of the information provided, is the inheritance of haemophilia: (i) autosomal or sex-linked? (ii) dominant or recessive? 3) State the probability of individual 8 being a carrier of haemophilia. 4) Explain why only females can be carriers of haemophilia.
In Figure 6-14, write possible genotypes for each of thefour snakes illustrated.
eritance / 13 of 15 Black hair color is dominant to white hair color in mice. Interpret the Punnett squrare below to determine the expected phenotypic ratio for the offpring of a homozygous black mouse and a white mouse. В Bb Bb Bb Bb O A. 4 Black: 0 White O B. 3 Black: 1 White O C 2 Black: 2 White O D. O Black: 4 White acer

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