FREE! Click here to Join FunTrivia. Thousands of games, quizzes, and lots more!

Quiz about Horse Coat Colors and Genetics

Horse Coat Colors and Genetics Quiz

This is a quiz about Horse Coat Colors and Horse Color Genetics. Questions are based on material from 'The Horse, 2nd Edition" by Evans, Borton, et al, the Horse Industry Handbook, and certain other sources on genetics.

A multiple-choice quiz by kspirit. Estimated time: 5 mins.

Author
kspirit

Time
5 mins

Type
Multiple Choice

Quiz #
160,034

Updated
Jun 26 23

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
3518

Last 3 plays: Guest 161 (8/10), Guest 24 (7/10), Guest 184 (3/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. On a perlino horse, what color are the points? Hint

white

rust

cream

black

NEXT>

Question 2 of 10

2. What is the term for the genetic makeup of a horse? Hint

genotype

chromosomes

phenotype

blood

NEXT>

Question 3 of 10

3. Which locus controls the gene for roan coloring? Hint

G locus

T locus

R locus

E locus

NEXT>

Question 4 of 10

4. How many pairs of chromosomes do horses have? Hint

NEXT>

Question 5 of 10

5. If a horse has the genotype AAEE, AaEe, or AAEe, what color is it? Hint

Grey

Chestnut

Black

Bay

NEXT>

Question 6 of 10

6. If a horse has the genotype RnRn, it is: Hint

All of these

Probably dead

Homozygous

The foal of two roan parents

NEXT>

Question 7 of 10

7. If a horse has the genotype Zz, it is what color? Hint

Tobiano

Flaxen mane and tail

Splash White

Silver Dapple

NEXT>

Question 8 of 10

8. Roan, Dominant White, and Grey are called what: Hint

epistatic modifiers

pinto patterns

lethal genes

dilution genes

NEXT>

Question 9 of 10

9. Lethal white syndrome causes a foal to be born without a functional ___? Hint

heart

tail

liver

colon

NEXT>

Question 10 of 10

10. A double dilution of the creme gene can result in what two colors? Hint

cremello and perlino

dun and perlino

palomino and buckskin

cremello and champagne

(Optional) Create a Free FunTrivia ID to save the points you are about to earn:

Select a User ID:

Choose a Password:

Your Email:

Most Recent Scores

Oct 10 2024 : Guest 161: 8/10
Oct 10 2024 : Guest 24: 7/10
Sep 13 2024 : Guest 184: 3/10

Score Distribution

Quiz Answer Key and Fun Facts

1. On a perlino horse, what color are the points?

Answer: rust

Perlinos have rust colored points. The black is diluted to a rust color instead of a cream color.

2. What is the term for the genetic makeup of a horse?

Answer: genotype

The genotype is the genetic makeup (which genes a horse has, and in which forms) and controls the phenotype.

3. Which locus controls the gene for roan coloring?

Answer: R locus

The gene for roan is located on the R locus. T is tobiano spotting, E is for base coat color, and G is grey.

4. How many pairs of chromosomes do horses have?

Answer: 32

That makes 64 in total!

5. If a horse has the genotype AAEE, AaEe, or AAEe, what color is it?

Answer: Bay

The E's cause the horse to have a black base, while the A's restrict the black hair to the points.

6. If a horse has the genotype RnRn, it is:

Answer: All of these

A horse that is RnRn is homozygous for the roan gene, and it will probably die in utero since roan is frequently lethal in its homozygous dominant form. It also had to come from two roan parents, which would be a very risky pairing that most breeders probably would never attempt.

7. If a horse has the genotype Zz, it is what color?

Answer: Silver Dapple

The genes on the Z locus determine whether or not a horse is silver dapple. This gene is rare in most breeds, but very common in Shetlands, Minis, and Icelandic ponies.

8. Roan, Dominant White, and Grey are called what:

Answer: epistatic modifiers

They totally or partially mask the presence of other coat colors.

9. Lethal white syndrome causes a foal to be born without a functional ___?

Answer: colon

The foal will often be carried to full term and appear normal, although mainly white and with blue eyes. The foal cannot survive and will be euthanized as soon as the condition is identified. Both parents need to be carriers of the mutated gene for the foal to inherit the fault, and DNA testing can prevent this happening.

10. A double dilution of the creme gene can result in what two colors?

Answer: cremello and perlino

These two colors are both recognized by the American White Horse association.

Source: Author kspirit

This quiz was reviewed by FunTrivia editor crisw before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.