GENETIC ANALYSIS: INTEGRATED - ACCESS
3rd Edition
ISBN: 9780135349298
Author: Sanders
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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Discuss why heritability is an important phenomenon in agriculture.
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.
Crossbreeding and genetic engineering
are both ways to develop improved varieties of crops.
True
False
Chapter 19 Solutions
GENETIC ANALYSIS: INTEGRATED - ACCESS
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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What is endemism? Can you explain the question in more than 100 words?arrow_forwardWhy is the narrow-sense heritability more useful to plant and animal breeders than broad sense heritability?arrow_forwardDifferent 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
- What 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_forwardWhat does a negative heterosis value means?arrow_forwardI 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_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 are all the possible genotypes of a round, yellow pea? Select all that apply. RRyy RRYY rrYy RRYY RRYY Rryy O RrYy O rrYYarrow_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_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_forwardPlant height is controlled by 5 gene pairs. The homozygous dominant is 200 cm tall while the homozygous recessive exhibits 80 cm height. Assume that the alleles have equal contribution and have cumulative effects. The F1 and F2 of the two parents below were studied. Parent 1 Parent 2 DID,D2D2D3D3dąd, dsds dıdıd2d2d3d3DąD4 D5D5 a. Compute for the contribution of the dominant allele. b. Compute for the height of parent 1 and parent 2. Provide the genotype and phenotype of the F1. d. Compute for the frequencies of the different individuals in the F2 using the Pascal's triangle. e. Provide the phenotypes of the F2 and their frequencies. С.arrow_forward
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