The selection of high performing individuals is the main challenge for breeders. In animals, it is sometimes difficult or impossible to select directly on the desired trait. For example, how to choose the bull that will give cows with a very good milk production? Select one: a. we choose the bull whose mother was the most productive O b. we choose the bull with the most muscles we choose the most gentle bull d. we choose the bull whose "daughters" have the highest milk production we cannot know which bull to choose, so we leave it to chance C. e.

The selection of high performing individuals is the main challenge for breeders. In animals, it is sometimes difficult or impossible to select directly on the desired trait. For example, how to choose the bull that will give cows with a very good milk production? Select one: a. we choose the bull whose mother was the most productive O b. we choose the bull with the most muscles we choose the most gentle bull d. we choose the bull whose "daughters" have the highest milk production we cannot know which bull to choose, so we leave it to chance C. e.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

Section: Chapter Questions

Problem 2QP

See similar textbooks

Similar questions

From an agricultural point of view, discuss the advantages and disadvantagesof selective breeding. It is common for plant breeders to take two different, highly inbred strains, which are the product of many generations of selective breeding, and cross them to make hybrids. How does this approach overcome some of the disadvantages of selective breeding?
What is meant by the term ‘breed’? What are the objectives of animal breeding?
. A chicken breeder is working with a population in whichthe mean number of eggs laid per hen in one month is 28and the variance is 5 eggs2. The narrow-sense heritabilityis known to be 0.8. Given this information, can the breeder expect that the population will respond to selectionfor an increase in the number of eggs per hen in the nextgeneration?a. No, applying selection is always risky and a breedernever knows what to expect.b. No, a breeder needs to know the broad-senseheritability to know what to expect.c. Yes, since the narrow-sense heritability is close to1 (0.8), then we would expect selective breeding couldlead to increased egg production in the next generation.d. Yes, since the variance is greater than 0.e. Both c and d are correct.
A gardener grows two different colors of apples under exactly the same environmental conditions. Red apples have a heritability of 0.14 for the value of apple weight, and green apples have a heritability of 0.41 for the value of apple weight. The gardener plotted the number of apples present at each weight. Which graph would you hypothesize represents the red apples? Number of apples Weight GRAPH A Number of apples Weight GRAPH B O Graph A O Graph B There is not enough information to make a hypothesis.
A wild population of pea plants has two alleles forflower color in its gene pool. A dominant allele (P)specifies purple flowers; a recessive allele (p) specifieswhite flowers. If the frequency of allele P is 0.75, what isthe expected frequency of allele p?
In improving single trait in chicken, which of the following will you expect to have the lowest response to selection? Percent fertility FCR Yolk index Dressing percentage
A dog breeder thinks that he will be able to charge higher prices for extra-tiny versions ofsmall dogs. He starts off by trying to selectively breed smaller Yorkshire terriers. The averageadult mass of the terriers in his kennel is 2.5 kg. He selects a subset of the smallest dogs to foundhis new tiny dog line. The average mass of the 20 selected dogs is 1.8 kg. He chooses matedpairs randomly from that pool of 20 dogs and rears the resulting puppies to adulthood. Theaverage mass of these offspring was 2.4 kg. Disappointed with the results, the breeder wantsyour help in figuring out where his plan went wrong. 5a.What is the narrow-sense heritability of body size in his population of dogs? 5b. You examine his records and calculate the total phenotypic variance VP across his wholestarting population of yorkies to be 1.1. What is the additive genetic variance VA in thispopulation? 5c. The breeder clearly kept very good records of dog size measurements across the pedigrees inhis…
Name the methods employed in animal breeding. According to you whichof the methods is best? Why?
The following statements describe events in the life cycle of a rabbit. Which of these events describes a trait of the rabbit that is most likely passed on to future generations? O A young rabbit develops a bacterial infection and lives long enough to produce three litters. O A young rabbit constantly outruns predators and lives long enough to produce three litters. O A young rabbit survives freezing winter temperatures and digs a burrow in the spring. O A young rabbit migrates to find a better food supply and establishes a new territory.
If you buy some new bull elk with average antler size of 380 inches, and use them as breeders to try to increase antler size in the herd, your selection differential S between these breeders and the rest of the herd will be · (Ignore the fact that we are not dealing with female measurements).
Name the methods employed in animal breeding. According to you which of the methods is best? Why?
From a biological viewpoint, speculate as to why many traits seemto fit a normal distribution. Students with a strong background inmath and statistics may want to explain how a normal distributionis generated, and what it means. Can you think of biological examplesthat do not fit a normal distribution?