you are a dog breeder and are interested in determining the relative contributi

Question

you are a dog breeder and are interested in determining the relative contributi reeder and a dos bre n num 17. Yo are interested in determining the relative contribution of the variation in additive alleles erage number of to the total variation in number of puppies per female in your breeding population. You puppies to-be-5 in your overall population, To conduct your experiment, you c average number of puppies narrow-sense heritability of this trait in your dog population? choose to breed several dogs whose s B. You then measure the average number of puppies of their offspring to be 6. What is the e.6/5 or 1.2 a. 5/8 or O.63 b. 6/8 or 0.75 c. 5/6 or 0.83 d. 1/3 or 0.33

Explanation / Answer

The average number of puppies in overall population = 5

The average number of puppies in the chosen population = 8

The average number of puppies in the offspring of chosen population = 6

Therefore, the selection differential = (8 - 5) = 3

The selection response = (6 - 5) = 1

So, the narrow sense heritability is calculated as follows,

= selection response / selection differential

= 1/3

= 0.33

Hence, the answer for this question is option d (1/3 or 0.33).

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