Pearson eText Genetic Analysis: An Integrated Approach -- Instant Access (Pearson+)
3rd Edition
ISBN: 9780135564172
Author: Mark Sanders, John Bowman
Publisher: PEARSON+
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Chapter 19, Problem 9P
Why is heritability an important phenomenon in plant and animal agriculture?
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Explain why heritability is an important phenomenon in agriculture.Discuss how it is misunderstood.
A plant breeder wants to use selective breeding to produce corn with short stalks and a high mass of grain.He could use the following varieties of cor, A, Long stalks, high mass of grain, B, Short stalks, low mass of grain or c, Long Stalks, low mass of grain. What would the plant breeder need to do to make sure he always produced corn with a short stem and a high mass of grain? Describe three steps the breeder would use.
Why is the narrow-sense heritability more useful to plant and animal breeders than broad sense heritability?
Chapter 19 Solutions
Pearson eText Genetic Analysis: An Integrated Approach -- Instant Access (Pearson+)
Ch. 19 - Which of the following traits would you expect to...Ch. 19 - 19.2 For the traits listed in the previous...Ch. 19 - Compare and contrast broad sense heritability and...Ch. 19 - 19.4 In a cross of two pure-breeding lines of...Ch. 19 - 19.5 Describe the difference between continuous...Ch. 19 - Prob. 6PCh. 19 - 19.7 Provide a definition and an example for each...Ch. 19 - 19.8 What is a random sample, and why can a random...Ch. 19 - 19.9 Why is heritability an important phenomenon...Ch. 19 - 19.10 Three pairs of genes with two alleles each (...
Ch. 19 - 19.11 In selective breeding experiments, it is...Ch. 19 - 19.12 Two inbred lines of sunflowers produce...Ch. 19 - What is quantitative trait locus (QTL)? Suppose...Ch. 19 - 19.14 In Nicotiana, two inbred strains produce...Ch. 19 - 19.15 Suppose the length of maize ears has narrow...Ch. 19 - In a line of cherry tomatoes, the average fruit...Ch. 19 - 19.17 Two purebreeding wheat strains, one...Ch. 19 - Prob. 18PCh. 19 - During a visit with your grandparents, they...Ch. 19 - 19.20 An association of racehorse owners is...Ch. 19 - Prob. 21PCh. 19 - Suppose a polygenic system for producing color in...Ch. 19 - New Zealand lamb breeders measure the following...Ch. 19 - Cattle breeders would like to improve the protein...Ch. 19 - In human gestational development, abnormalities of...Ch. 19 - The children of couples in which one partner has...Ch. 19 - Answer the following in regard to multifactorial...Ch. 19 - 19.28 Suppose the mature height of a plant is a...Ch. 19 - A three-gene system of additive genes (A, B, and...Ch. 19 - 19.30 Congenital dislocation of the hip is a...Ch. 19 - A total of 20 men and 20 women volunteer to...
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- Crossbreeding and genetic engineering are both ways to develop improved varieties of crops. True Falsearrow_forwardWhat is endemism? Can you explain the question in more than 100 words?arrow_forwardWhat is the difference between broad-sense heritability and narrow-sense heritability? Why is narrow-sense heritability such auseful concept in the field of agricultural genetics?arrow_forward
- Different traits may be important in order to increase wheat yield. These traits may include short plant height, short and erect leaves, large and compact panicles, and resistance to shattering. Resistance to shattering is an important agronomic character for maximizing wheat yield, because plants with low susceptibility to shattering have reduced loss of grain mass during harvest. If you have determined that VG = 357, VD = 52, VI = 24 and VE = 5 for the shatter trait, what is the estimate for narrow sense heritability for the shatter trait?arrow_forward(b) A plant breeder wants to use selective breeding to produce corn with short stalKS and a high mass of grain. He could use the following varieties of com: varlety A varlety B varlety C long stalks short stalks long stalks high mass of grain low mass of grain low mass of grain (i) What would the plant breeder need to do to make sure he always produced corn with short stalks and a high mass of grain? Describe the three steps the breeder would use. (ii) Suggest one other characteristic that famers might like corn plants to have to increase the amount of corn produced.arrow_forwardWhat does a negative heterosis value means?arrow_forward
- I don’t understand the concept of Mendels formula. I don’t get how they used the ratios in table 3.4 to predict the number of genotypes in each generation and I was wondering if you could explain it better. I don’t know how they got those numbers.arrow_forwardLet's say that you were a farmer and you have a field of peas of various genotypes. Pretend that you only want to produce wrinkled peas. What would you do with your current plants to ensure that the next generation is mostly wrinkled peas? (You can't buy different plants; work with what you have.)arrow_forwardWhat are all the possible genotypes of a round, yellow pea? Select all that apply. RRyy RRYY rrYy RRYY RRYY Rryy O RrYy O rrYYarrow_forward
- What do we mean when we say a strain is true-breeding?arrow_forwardWhy plant breeders intend to change the inheritance of crop plants? How plant breeders can change the heredity of crop plants? Explain your answer in briefly.arrow_forwardA collection of all the alleles of all the genes of a crop plant are called?arrow_forward
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