coinbreedpr - the questions: Cov Z*X = 1/2[Cov Z*S + Cov...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
PRACTICE WITH USE OF THE COVARIANCE TABLE METHOD OF INBREEDING CALCULATION Z T Z T R R T A R T B A B D R D S S D X Z 1 0 .5 .25 .25 .25 .375 T 1 .5 .75 .75 .75 .625 .6875 R 1 .75 .75 .875 .8125 A 1.25 .75 1.0 .9375 B 1.25 1.0 1.125 1.0625 D 1.375 1.0625 1.21875 S X Given the information in the covariance table above, fill in the empty values (the Cov values below) and also answer the questions: Cov Z*X = Cov R*A = Cov A*S = Cov S*S = Cov S*X = Cov X*X = a. What is the level of inbreeding to be expected in the mating of Z to X? b. What animal should cow D be mated to that would result in the lowest level of inbreeding? c. What is the inbreeding coefficient of X? d. What level of inbreeding would be expected in the mating of X back to her sire, S?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
ANSWERS Z T Z T R R T A R T B A B D R D S S D X Z 1 0 .5 .25 .25 .25 .375 T 1 .5 .75 .75 .75 .625 .6875 R 1 .75 .75 .875 .8125 A 1.25 .75 1.0 .9375 B 1.25 1.0 1.125 1.0625 D 1.375 1.0625 1.21875 S X Given the information in the covariance table above, fill in the empty values (the Cov values below) and also answer
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: the questions: Cov Z*X = 1/2[Cov Z*S + Cov Z*D] = [.25 + .375] = .3125 Cov R*A = 1/2[Cov R*R + Cov R*T] = [1 + .5] = .75 Cov A*S = 1/2[Cov A*R + Cov A*D] = [.75 + 1] = .875 Cov S*S = 1 + 1/2[CovR*D] That is 1 + 1/2Cov(Parents of S) = 1 + F S = 1 + .5[.75] = 1.375 Cov S*X = 1/2[Cov S*S + Cov S*D] = [1.375 + 1.0625] = 1.21875 Cov X*X = 1 + 1/2[Cov S*D] = 1 + F X = 1 + [1.0625] = 1.53125 a. What is the level of inbreeding to be expected in the mating of Z to X? Cov Z*X = * .3125 = .15625 b. What animal should cow D be mated to that would result in the lowest level of inbreeding? Z, this mating would yield progeny with an inbreeding coefficient of only .125. c. What is the inbreeding coefficient of X? .53125 d. How much inbreeding would be expected in the mating of X back to her sire, S? * Cov X*S = * 1.21875 = .609375...
View Full Document

Page1 / 2

coinbreedpr - the questions: Cov Z*X = 1/2[Cov Z*S + Cov...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online