2. Use the following information to calculate a prediction of the EBV, EPD of two beef sires with records of progeny. Heritability for yearling weight = 45 a. Sire 1 has 105 progeny that average 1,150 at a year of age with a population average of 1,000 lbs. EBV = EPD- Future progeny record b. Sire 2 has 50 progeny that average 1,200 at a year of age with a population average of 1,100 lbs. EBV= EPD= Accuracy Accuracy Future progeny record Accuracy Accuracy
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- The common garden pea (Pisum sp.) can have green or yellow pea pods. Green peas are either homozygous dominant or heterozygous, while yellow peas are homozygous recessive. In a population of 500, there are 150 yellow individuals. Calculate q, p, p^2, 2pq, q^2.Then determine the number of mottled and orange individuals in the population. Select all the answer below that are correct. Note p? and p^2 are equivalent notation.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 h²1. Consider this graph on running speed in huskies Midosspring running speed (m/s) 16 14 12 10 8 + 2 Husky running speed 4 6 8 Midparent running speed (m/s) 10 12 14 16 a. Approximately what is the heritability of running speed in this kennel of huskies? (You can approximate by eyeballing from the graph, no need to calculate the actual slope) b. If the breeder where to selectively breed the dogs, will the dogs run substantially faster in the next generation? c. What else can the breeder do to increase running speed?
- 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…II.. Interpret and identify what statistical test will be use (parametric or nonparametric) and discuss. 1. Tests of Normality (8 Kolmogorov-Smirnov Sig. Shapiro-Wilk Sex Statistic df Statistic df Sig. SEI Male .052 140 .200 .980 140 .035 Female .062 203 .058 .988 203 .082 *. This is a lower bound of the true significance. a. Lilliefors Significance Correction8. For each of the following pairs of parental genotypes, calculate the phenotypic ratios for the F1 generation. a. LAIA X ii b. IAIA x IAIB C. IAIA x IBI d. IAIA X IAI e. IAI x IAI f. IAi x IAIB 9. IAI x 9. If Mr. and Mrs. Fecundity, both having blood type B, have 12 children, 3/4 of whom are type B and 1/4 of whom are 0, what are the genotypes of the parents? 10. A family of six includes four children, each of whom has a different blood type: A, B, AB and 0. What are the genotypes of parents for this trait? 11. A man with blood type B, with one parent of blood type 0, marries a woman with blood type AB, What will be the theoretical percentage of their children with blood type B? 12. Mortimer has type B blood. His wife Murgatroyd is unsure of her blood type. If their first child, Magnifica, is type B, their second offspring, Maximum, is AB and the twins, Maud and Lyn, are A can you determine the genotypes of Mort and Murg?
- 1. A soybean breeder is aiming to breed for early maturation. He was able to cross variety A which has desirable agronomic characteristics but late maturation with variety B which has less-than-ideal agronomic characteristics but early maturation. In addition to the F₁ population, F2 and BC1 population were also generated. The variances for each population are presented below. Population P₁ P2 F₁ F2 BC1 Variance 3.3 days² 4.7 days² 6.6 days² 19.2 days² 12.1 days² h²broad = 74.5% h²narrow = 74.0% a) Based on the data from this experiment, will you recommend putting in effort to breed for early maturation in soybean? Justify your answer by citing and interpreting the relevant heritability value(s).elp Normal ▾ B IU A - Corn Breeding / Genetic Problem A corn breeder is working with 2 inbred corn plants. He is interested in two traits: High yield (produces lots of corn) and drought tolerance (does not need lots of water). High yield (H) is dominant to low yields (h). Drought tolerance (D) is dominant to drought intolerance (d). M BEE Inbred 1 is true breeding for drought tolerance and low yield (DDhh). Inbred 2 is true breeding for drought intolerance and high yield (ddHH). In the parent cross (P) the corn breeder crossed inbred 1 with inbred 2. The resulting F₁hybrid (DdHh) was heterozygous for drought tolerance and high yields. Phenotypically all the corn needs little water to grow and produces lots of corn. This is the corn that is sold to farmers, planted in the Spring and harvested in the Fall. Explain why the farmer does NOT hold back some of the Fall harvested (F₂) kernels and plant them next Spring. You must show your work. (Hint: As a %, how many of the F2 kernels still…B. The mean and standard deviation of plant height from two rice plants (P1 and P2) and their progeny (F1 and F2) and a backcross generation (P, x F1) are shown below. Мean Standard Coefficient of Population Variance (in) deviation Variation, % P1 34.2 1.2 1.4 3.5 P2 65.3 0.8 0.6 1.2 F1 44.2 1.3 1.7 2.9 F2 46.3 1.9 3.6 4.1 BC1 39.7 1.1 1.2 2.8 1. Calculate the broad-sense heritability of plant in this species. Interpret your results.
- Once upon a time there was a population of hippies living in an isolated commune called Gone. They had been there for generations, and all members were homozygous for a gene that gave them a preference for crafting necklaces out of green beads, so that every individual had the genotype GG at this locus. In another isolated commune, called Yonder, was a population of hippies that had a genetic propensity for making necklaces out of yellow beads, and everyone was homozygous for a different allele at the same genetic locus; their genotype was YY. Last year (prior to our current social isolating) everyone repaired their VW buses, and a giant gathering in celebration of the 50th anniversary was held at the Oregon Country Fair. The next few questions will ask you about these two populations that came together at the fair.1. Briefly discuss the Genetic parameters for selecting process 2. Briefly discuss the Values and variance components mentioned in https://www.researchgate.net/publication/235324145_Quantitative_Genetic_Application_in_the_Selection_Process_for_Livestock_Productiontrue or false 1.Crossbreeding and genetic engineering are both ways to develop improved varieties of crops. 2.Reducing the use of GMOs could reduce the cost of organic products 3.Overnutrition is most common in developed countries, rather than in less-developed countries 4.Micronutrients include carbohydrates, proteins, and fats. 5.To reduce the drawbacks of no-till farming, it will be important to find ways to reduce associated herbicide use. 6.High-input agriculture is a form of industrialized agriculture used primarily in less-developed tropical countries that involves growing cash crops such as bananas, coffee, vegetables, soybeans, sugarcane, and palm oil.