Horse Genetics and Coat Color

The video explores the genetics of horse coat colors, focusing on the roles of various genes such as W, G, E, A, C, and D. It explains how these genes influence pigmentation, patterns, and dilution effects, and highlights the importance of understanding genetic combinations for accurate color prediction.

What is the effect of the dominant W allele on a horse's pigmentation?

• It causes the horse to have a black coat.

• It results in a white or albino appearance.

• It has no effect on pigmentation.

• It makes the horse's coat gray.

If a horse is born any color but gradually turns white, which allele is responsible?

• Dominant G

• Recessive w

• Recessive g

• Dominant W

Which gene is responsible for placing black pigment in a horse's hair?

• W gene

• G gene

• E gene

• A gene

What is the genetic formula for a horse with no black pigmented hair?

• GG

• ee

• Ee

• EE

How does the A gene affect the distribution of black hair in horses?

• It restricts black hair to the points.

• It causes black hair to cover the entire body.

• It has no effect on black hair distribution.

• It turns black hair into red hair.

Which allele combination results in a uniformly black horse?

• AA with ee

• aa with EE

• Aa with EE

• aa with Ee

What effect does the C gene have on red pigment in horses?

• It dilutes red pigment to yellow.

• It enhances red pigment.

• It turns red pigment into black.

• It has no effect on red pigment.

What is the result of a horse having the CCRC allele combination?

• The horse has a chestnut coat.

• The horse has a black coat.

• The horse has a pale cream coat.

• The horse has a dark liver coat.

Which gene is responsible for the presence of dorsal stripes and zebra striping on legs?

• W gene

• D gene

• C gene

• G gene

What is the effect of a double dominant W allele in horses?

• It results in a fully pigmented horse.

• It is lethal.

• It causes a gray coat.

• It has no effect.