How Are Fry Colours Determined?

[balashark]

I was just wondering how does the color in guppies get passed on? if you have a blue male mate with a blue female do the fry all turn out to be blue or is it random? I've looked online for an answer but can't find any. The only babies i've had were from a miscarriage and they are pure yellow/gold and 1 survived from a different pregnancy and she was the same as her mother. From your experiences how does this work?

 

[HCpetraitis]

Well, I think you can relate this to human genes. If the male had green eyes and the female had blue eyes and they had 30 children (hypothetically speaking) 15 could be blue eyed and 15 could be green eyed. Its just probability. (I hope that helped)

 

[Truck]

if you had two pure blue guppies that have colour genes for blue they would be both BB (B for blue and big B for the dominant gene)

so BB breeding with BB would produce 100% BB's so 100% blue guppies

if you crossed a pure blue with a red/blue mix (guppy is blue) the code would then be BB mix with Br which would produce
50% pure blue 50% blue with red recessive genes

if a red/blue mix (blue guppy) bred with a red/blue mix (blue guppy) you would get

25% pure blues
50% blue but with red recessive genes
25% pure red.

 

[HCpetraitis]

Hah Truckasauras123 is way more complicated, but thats kinda what I was getting at

 

[balashark]

thanks for the replies. It sounds like i'm going to have some sweet blue and yellow guppies in about a month.

 

[jackyb07s4]

thanks for the replies. It sounds like i'm going to have some sweet blue and yellow guppies in about a month.

maybe not. You don't know what genes have been passed on from previous parents I assume?

 

[HCpetraitis]

Yea they could have other colors in them too. But its most likely that they will be blue and yellow