Name: _____________________________________ Hour:_________ Date:__________________
Horse Coat Color Webquest
WEBSITE:
http://www.jenniferhoffman.net/horse/extension.html
EXTENSION
1. How many different genes interact to produce coat color?
2. What are the two base colors?
3. What pigments cause red and black?
4. When identifying a horse’s color why should we ignore white markings?
AGOUTI BAY
5. What time of gene is agouti, and what does it do?
6. List the possible alleles for agouti and the color pattern they produce.
7. What is different about the Wild Bay coloring?
WHITE OR GREY
8. List some of the differences between horses with the white and grey genes?
9.
Why is important to carefully breed a horse with a white gene?
CREME DILUTION
10. Is the crème gene dominant or recessive?
11. What is the most recent allele of the crème gene that has been discovered?
12. What colorings are a result of the crème dilution gene?
DUN DILUTION
13. How do they describe the dun dilution? What are they?
CHAMPAGNE
14. List the 3 unique things about the champagne dilution.
SILVER DAPPLE & FLAXEN
15. What two areas do these dilution genes affect most?
16. Are these genes dominant or recessive?
ROAN, RABICANO, & SOOTY
17. What is a rabicano?
18. Describe the sooty gene and where it’s found on a horse’s body.
PINTOS & PAINTS
19. What is the difference between a paint and a pinto?
20. Which of the spotting patterns also can be lethal? What is the chance the foal will have it from two
parents?
21. What percentage of homozygous Sabino pattern horses are white at birth?
KIT GENE
22. What are the four patterns that the KIT gene is responsible for?
APPALOOSA
23. In addition to white patterning, what do all Appaloosas have?