5. The Flemish breed of rabbits have an average weight of 3600 grams. The Himalayan breed has a mean of 1875 grams. Matings between these two breeds produce an intermediate F1 with a standard deviation of + 162 grams. The standard deviation of the F2 is ± 230 grams. Estimate the number of pairs of factors contributing to mature body weight of rabbits. Estimate the average contribution of each active allele.

5. The Flemish breed of rabbits have an average weight of 3600 grams. The Himalayan breed has a mean of 1875 grams. Matings between these two breeds produce an intermediate F1 with a standard deviation of + 162 grams. The standard deviation of the F2 is ± 230 grams. Estimate the number of pairs of factors contributing to mature body weight of rabbits. Estimate the average contribution of each active allele.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter21: Microevolution: Genetic Changes Within Populations

Section: Chapter Questions

Problem 7TYK: A population of mice is at HardyWeinberg equilibrium at a gene locus that controls fur color. The...

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6. You are studying the physiology of hypertension (high blood pressure) using the rat as a model system and wish to breed a strain of rat which has naturally high blood pressure. Systolic blood pressure is a quantitative trait with a continuous phenotypic distribution. It is measured as millimeters of mercury displaced in a blood pressure meter (mm Hg). You start with a base population of normal domestic rats, which has a mean systolic blood pressure of 120 mm Hg. You select the 10% of the rats which have the highest systolic blood pressure. The average systolic blood pressure value of these selected breeders is 140 mm Hg. You then interbreed the selected rats and measure the systolic blood pressure in their progeny. What would be the average systolic blood pressure in the progeny of the selected breeders if A. heritability = 0.5 ? B. heritability = 1.0 ? C. heritability = 0 ? D. In a second experiment, you go back to that same base population of domestic rats and select the 10% of…
5. When two alleles are observed independently in a phenotype is called multiple alleles. Human blood group ABO is a good example of multiple alleles. The three alleles are: I^, IB, i. Mother's blood type is AB (IAIP) and father's blood type is B (1³i). Provide the genotype and phenotype ratios using the Punnett square given below. Genotypes 6. When the allele of a trait is found on X or Y chromosome, it becomes sex-linked. The results differ from males to females. One such example is of red green colorblindness. The mother is a carrier (XCX), and the father is colorblind (XY). Provide the genotype and phenotype ratios using the Punnett square given below. Genotypes Phenotypes **CLUSTROS Phenotypes 75-1024
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1. In a population of 1000 bison, there are two alleles at the B locus. It acts incompletely dominantly, so that you are able to figure out each animal's genotype simply by observing its phenotype. How convenient. You find 665 BB, 225 Bb, and 110 bb bison. a) What are the allele frequencies of B and b? (round off the number) b) Using the allele frequencies, what numbers (not just fractions, but numbers of actual bison in this population of 1000 and yes you can round off) would you expect to be BB, Bb, and bb? c) Do you think this bison population is in HW equilibrium? d) No matter what your answer to c, if they weren't in HW equilibrium, name 5 possible reasons why.
1. In a wild strain of tomato plants, the phenotypic variance for tomato weight is 3.2g². In another strain of highly inbred tomatoes raised under same environmental conditions, the phenotypic variance is 2.2 g². With regard to wild strain a. What is VG b. What is h₂² C. Assuming that all of the genetic variance is additive what is h²
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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