W & Y question

[stager]

Recently I've picked up a W & Y. I've been doing some genetic calcs on breeding him later this year. My question is if W & Y is co-dominant wouldn't W & Y x W & Y pproduce all W&Y not 50%?

 

[Big Red One]

No.....

You have a 50/50 chance of each parent passing on one copy of the W&Y gene assuming that they are both hetorozygous for it.

So you can have one parent pass one copy of the gene, both parents pass one copy of the gene, or indeed neither parent pass on one copy of the gene.

If the first option occurs you have a hetorozygous W&Y which would then express phenotypically, in the second instance you would have a homozygous W&Y again expressing phenotypically. The last option would give you know W&Y genes being passed on, therefore no phenotypical expression......

If both W&Y were homozygous then all offspring would receive at least one copy of the gene and be heterozygous for it and therefore would express it phenotypically.

Hope that helps!

 

[Gary Orner]

W/Y is not Co-Dominant. It is dominant.

 

[stager]

No.....

You have a 50/50 chance of each parent passing on one copy of the W&Y gene assuming that they are both hetorozygous for it.

So you can have one parent pass one copy of the gene, both parents pass one copy of the gene, or indeed neither parent pass on one copy of the gene.

If the first option occurs you have a hetorozygous W&Y which would then express phenotypically, in the second instance you would have a homozygous W&Y again expressing phenotypically. The last option would give you know W&Y genes being passed on, therefore no phenotypical expression......

If both W&Y were homozygous then all offspring would receive at least one copy of the gene and be heterozygous for it and therefore would express it phenotypically.

Hope that helps!

Thanks that does help

 

[pmkent1]

W/Y is not Co-Dominant. It is dominant.

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