The Horse Forum - Homozygous question just out of curiousity

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HorseLovinLady

12-25-2011 09:43 PM

Homozygous question just out of curiousity

This is just a question out of curiousity not about breeding at all. I'm just wondering is all. If a foal's dam is Homozygous for the tobiano gene but the father is Heterozygous for tobiano what if any chance will the foal be Homozygous tobiano?

NdAppy

12-25-2011 09:45 PM

You have a 50% chance of the foal being homozygous for tobiano.

HorseLovinLady

12-25-2011 09:52 PM

Quote:

Originally Posted by NdAppy (Post 1279716)

You have a 50% chance of the foal being homozygous for tobiano.

Thanks! Just something i've been wondering about.

Chiilaa

12-25-2011 10:03 PM

Yup, as ever, ND is correct :-)

Just wanted to add that being homozygous for tobiano is not a guarantee for colour :-)

HorseLovinLady

12-25-2011 10:53 PM

Quote:

Originally Posted by Chiilaa (Post 1279751)

Just wanted to add that being homozygous for tobiano is not a guarantee for colour :-)

Now that I knew. Thanks for the reply. :wink: I've learned a lot about horses colors and genetics from this forum and books.

Druydess

12-25-2011 10:57 PM

According to the good ol' Punnett square--- 50/50..

Ladybug2001

12-26-2011 02:04 PM

Quote:

Originally Posted by Druydess (Post 1279797)

According to the good ol' Punnett square--- 50/50..

I love those things. xD

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