firstex - NAME _ ANS 3384 EXAM 1 FEBRUARY 11, 2009 (10 pts)...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
NAME __________________________ ANS 3384 EXAM 1 FEBRUARY 11, 2009 (10 pts) 1. You have a grulla mare whose sire was black and she (the grulla mare) is known to be E/e, what are the possible colorations and their probability if she were to be bred to a dun (bay + D) that is heterozygous at the A, E and D loci? Note: to reduce the combinations combine E/E and E/e as well as D/D and D/d as the effect on the phenotype does not differ. (8 pts) 2. The following mating between a crossbred bull and a crossbred cow of the genotypes shown is made: The bull is of genotype (E D / E + S + /s) (Show work on back of this page) What are the coloration and spotting patterns of the: Bull: Cow: a. Will any calves be brindle and spotted like Holsteins? If so, what proportion? b. What proportion of the calves will look exactly like Herefords in spotting but be black in coloration? c. What proportion of the calves will be wild-type (“brown” but not brindle) and non-spotted?
Background image of page 1

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

View Full DocumentRight Arrow Icon
(8 pts) 3. A blue merle Collie (tri-color + merling) with short hair (smooth but heterozygous for the rough=long coat) is mated to a rough-coated sable whose dam was a tri- color. The sable is not a merle. Both dogs are si /si so all puppies will also be. Show all the coloration patterns/hair lengths and their ratios(probabilities).
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 07/16/2011 for the course ANS 3384 taught by Professor Olson during the Spring '09 term at University of Florida.

Page1 / 5

firstex - NAME _ ANS 3384 EXAM 1 FEBRUARY 11, 2009 (10 pts)...

This preview shows document pages 1 - 3. Sign up to view the full document.

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