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Proper selection of breeding stocks should always be considered. How important to you to know the bases in selecting breeder stocks?
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- what laws should be here for protecting the rights of breeders?A corn breeder wishes to improve yield. As part of their work, the narrow-sense heritability for corn yield is calculated to be 0.3. If the average yield in the starting population is 400 and the breeder selects for breeding plants with an average yield of 500, what will be the expected average yield among the offspring of the selected plants? A. 530 B. 330 C. 130 D. 430 E. 230A graduate student is studying a population of bluebonnets along a roadside. The plants in this population are genetically variable. She counts the seeds produced by each of 100 plants and measures the mean and variance of seed number. The variance is 20. Selecting one plant, the student takes cuttings from it and cultivates them in a greenhouse, eventually producing many genetically identical clones of the same plant. She then transplants these clones into the roadside population, allows them to grow for one year, and then counts the seeds produced by each of the cloned plants. The student finds that the variance in seed number among these cloned plants is 5. From the phenotypic variances of the genetically variable and the genetically identical plants, she calculates the broad-sense heritability. a. What is the broad-sense heritability of seed number for the roadside population of bluebonnets?
- The following question: Which parameter listed below is must important to the success of a selective breeding program?A farmer wants to increase the average body weight in a herd ofcattle. She begins with a herd having a mean weight of 595 kg andchooses individuals to breed that have a mean weight of 625 kg.Twenty offspring were obtained, having the following weights inkilograms: 612, 587, 604, 589, 615, 641, 575, 611, 610, 598, 589,620, 617, 577, 609, 633, 588, 599, 601, and 611. Calculate therealized heritability for body weight in this herd.Watermelon Genotypic and Phenotypic Ratio Practice Read the information below. Determine the ratios for phenotype and genotype of each Punnett Square.You may use the example from the Punnett Square worksheet as a guide.A genetic engineer is going to cross two watermelon plants to produce seeds for spring planting. He is breeding for size and wants to have many watermelons with the phenotype for long shape as possible. In watermelons, the allele for short shape is (S) is dominant to the allele for long shape. Determine the Genotypic ratios and phenotypic ratios for each Punnett square. Which cross would yield the highest number of long watermelons? Please make sure to write legibly to determine the capital “S” vs the lowercase “s” 1. SS x SS 2. SS x ss 3. SS x Ss 4. Ss x ss 5. Ss x ss 6. Ss x Ss
- In the selection index of a breeding program, the animal that has the lowest overall score based on the criteria of the index is used for the breeding program. Explain why the animal with the lowest overall score is selected for the breeding program.https://www.researchgate.net/publication/235324145_Quantitative_Genetic_Application_in_the_Selection_Process_for_Livestock_Production Give a brief discussion about the study above mainly about genetics and variationI expect for genetically identical animals that have been reared in similar conditions to have a smaller SD for any parameter that I decide to measure compared to genetically diverse animals that have been grown in a variety of natural environments.
- what is the difference between duck breeds, varieties and strains? please use examples if you canHow many individuals need to be genotyped in order to get an acceptable estimate of the rarity of alleles used for DNA profiling purposes? About 200 About 2,000 About 20,000 About 2,000,000 About 20,000,000What is the difference between crossbreeding and upgrading?