Blue Gene Jacks

[jaws19]

I understand the whole punnet Square thing and getting the blue gene and what not but my question is if you breed two blue genes together, will you get 100% EBJD fry? Or will they come out to just normal Jack Dempsey? Sorry I forgot and I just want to refresh my mind I haven't been to active in the hobby lately

~Kyle

 

[troutking]

U will get 25% EBJD fry

 

[Loves severums]

http://www.monsterfishkeepers.com/fo...highlight=EBJD

 

[jaws19]

Thank you, I'm thinking of giving this a shot again I'm not to sure yet.

 

[Stevie p]

Yup, 25% Blue Gene.

 

[Stevie p]

If we call the electric blue gene 'b' and the normal gene (which is dominant) 'B' then the male has the genotype 'bb' and the female has the genotype 'BB'.

If we put this into a Punnet square (below: male on the top row, female in the left left column) then the proportion of each offspring genotype can be seen to be 100% Bb.

bb BBb BbB Bb Bb

All the fry will be heterzygous for colouration (i.e. carrying one normal 'B' gene and one electric blue 'b' gene), meaning that they will look like normal JDs, but be carriers for the 'b' gene.