If heritability of a trait in a population of tomatoes is 0.6, and the present population...
If heritability of a trait in a population of tomatoes is 0.6, and the present population mean for sugar content is 5%, what would be the estimated mean of the next generation if it originates from a selected population whose sugar content is 10%?
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If heritability of a trait in a population of tomatoes is 0.6,
and the present population...
Name: Student Number: 8. A population was subjected to selection on a quantitative trait with the...
Name: Student Number: 8. A population was subjected to selection on a quantitative trait with the following results: Generation UWN Total Population Mean Mean of Selected Parents 2.16 2.32 2.26 2.34 2.30 2.37 2.33 2.41 2.36 2.47 2.40 a. Estimate the heritability for every generation for which it is possible (10 marks) b. Are there any trends in heritability over the generations? (2 marks)
Artificial selection for fruit size (mean fruit weight per plant) is carried out on a population ...
Artificial selection for fruit size (mean fruit weight per plant) is carried out on a population of tomatoes. In the population as a whole, mean fruit weight per plant is 75 g. Plants with mean fruit weight of 100 g per plant are selected and mated at random to produce the next generation. (a) If narrow-sense heritability of mean fruit weight is estimated at 60%, what is the expected mean fruit weight per plant after 1 generation of selection? (b)What...
The base sunflower population has a mean of 100 days to flowering. Two parents were selected...
The base sunflower population has a mean of 100 days to flowering. Two parents were selected that had a mean of 70 days to flowering. The quantitative trait days to flowering has a heritability of 0.6. What would be the mean of a population derived from crossing these two parents?h2-R/S 30 72 O 82 O 18
What is the heritability of running speed in the breeder's dog population. (5 points) If the...
What is the heritability of running speed in the breeder's dog population. (5 points) If the breeder selectively breeds her dogs, will the next generation run on average faster than the average speed she has now AND why? (3 points) Assume the breeder selects 5 pairs of parents with the highest mid: procent values and uses them as breeders. Calculate the selection differential the breeder has imposed on her population. (3 points) Use your estimate heritability and the selection differential...
3. A young entomologist is trying to increase body hairs in Drosophila. His original population has...
3. A young entomologist is trying to increase body hairs in Drosophila. His original population has a mean of 7.5 hairs, and he selects flies with a mean of 10 hairs to inter-mate and produce his next generation. The mean number of hairs in the resulting population was 9. a. What is the narrow sense heritability (h ) for number of body hairs in this Drosophila population (show your work)? b. What would have been the mean number of body...
An entomologist is trying to increase body hairs in Drosophila. Her original population has a mean...
An entomologist is trying to increase body hairs in Drosophila. Her original population has a mean of 7.5 hairs, and she selects flies with a mean of 10 hairs to inter-mate and produce his next generation. The mean number of hairs in the resulting population was 9. Could you show me the process on how to do this I just want to double check my work. 1.What is the narrow sense heritability (h2) for number of body hairs in this...
Dalancing and Purifying selection Question 6 1 pts The heritability of height from the class was...
Dalancing and Purifying selection Question 6 1 pts The heritability of height from the class was estimated to be 0.49. Assuming this is the correct value for the human population, how big would the selection differential have to be to decrease average height by 2 inches in the next generation? -0.98 inches -8.3 inches 4.1 inches -2.9 inches 2.1 inches
Consider a continuous phenotypic trait with an initial average value of 5. In the next generation,...
Consider a continuous phenotypic trait with an initial average value of 5. In the next generation, the average value of the trait is 7. The narrow-sense heritability of the trait is 0.5. Assume that selection accounts for all of the evolution of this trait. What was the selection differential? You shouldn't need a calculator. Report your answer as an integer (e.g. 1, -2, 3)
If you selected a population with an initial. heterozygocity of 0.6 for a set of alleles...
If you selected a population with an initial. heterozygocity of 0.6 for a set of alleles and you inbreed the population for 3 generations, what would the heterozygocity be at the 3th generation? (answer with up to 4 decimal places)
18. You have been hired by a dairy company to assist in their cow breeding program....
18. You have been hired by a dairy company to assist in their cow breeding program. They have a population of cows from which they have calculated the phenotypic and genotypic variance values for milk fat content. With this information, they want you to find the broad sense heritability of milk fat content in their herd. Variance Type Phenotypic Additive Genetic Dominance Epistatic Value for Cows 82.3 33.4 24.7 15.9 b. They now want to alter the milk fat content...
Name: Student Number: 8. A population was subjected to selection on a quantitative trait with the following results: Generation UWN Total Population Mean Mean of Selected Parents 2.16 2.32 2.26 2.34 2.30 2.37 2.33 2.41 2.36 2.47 2.40 a. Estimate the heritability for every generation for which it is possible (10 marks) b. Are there any trends in heritability over the generations? (2 marks)
The base sunflower population has a mean of 100 days to flowering. Two parents were selected that had a mean of 70 days to flowering. The quantitative trait days to flowering has a heritability of 0.6. What would be the mean of a population derived from crossing these two parents?h2-R/S 30 72 O 82 O 18
What is the heritability of running speed in the breeder's dog population. (5 points) If the breeder selectively breeds her dogs, will the next generation run on average faster than the average speed she has now AND why? (3 points) Assume the breeder selects 5 pairs of parents with the highest mid: procent values and uses them as breeders. Calculate the selection differential the breeder has imposed on her population. (3 points) Use your estimate heritability and the selection differential...
3. A young entomologist is trying to increase body hairs in Drosophila. His original population has a mean of 7.5 hairs, and he selects flies with a mean of 10 hairs to inter-mate and produce his next generation. The mean number of hairs in the resulting population was 9. a. What is the narrow sense heritability (h ) for number of body hairs in this Drosophila population (show your work)? b. What would have been the mean number of body...
Dalancing and Purifying selection Question 6 1 pts The heritability of height from the class was estimated to be 0.49. Assuming this is the correct value for the human population, how big would the selection differential have to be to decrease average height by 2 inches in the next generation? -0.98 inches -8.3 inches 4.1 inches -2.9 inches 2.1 inches
Consider a continuous phenotypic trait with an initial average value of 5. In the next generation, the average value of the trait is 7. The narrow-sense heritability of the trait is 0.5. Assume that selection accounts for all of the evolution of this trait. What was the selection differential? You shouldn't need a calculator. Report your answer as an integer (e.g. 1, -2, 3)
18. You have been hired by a dairy company to assist in their cow breeding program. They have a population of cows from which they have calculated the phenotypic and genotypic variance values for milk fat content. With this information, they want you to find the broad sense heritability of milk fat content in their herd. Variance Type Phenotypic Additive Genetic Dominance Epistatic Value for Cows 82.3 33.4 24.7 15.9 b. They now want to alter the milk fat content...
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