Okay, so I know basic terminology like recessive and dominant genes, the Punnet square, and genotypes and phenotypes. I should go over them, but... eh. <3
learnin' genetics - private w/ machi
This is an archived version of FeralFront. While you can surf through all the content that was ever created on FeralFront, no new content can be created.
If you'd like some free FeralFront memorabilia to look back on fondly, see this thread from Dynamo (if this message is still here, we still have memorabilia): https://feralfront.com/thread/2669184-free-feralfront-memorabilia/.
-
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]sure thing! so we're going from the beginning, yes c:
-
Pretty much!
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]alrighty!
first off, here are some definitions and a punnet square how-to for a refresher
Homozygous - when a cat has two copies of the same gene (e.g two black genes)
Heterozygous - when a cat has two genes, each different. (e.g one chocolate and one black)
Phenotype - the most basic way to describe something (e.g a cat, a dog)
Genotype - the word used to repreesent a gene. (e.g Bb, Dd, Aa, ww, I-, oo)
Eumenalin - the word used to show the black gene.
Pheomenalin - the word used to show the red gene.
Peibaldism - white spotting
Heterochromia - two different coloured eyes
Dense - an undiluted cat (e.g fawn, lilac, cream tabby)dominant and recessive are self explanatory c:
and here is the punnet square thingy:
QuoteDisplay Morepunnett squares make it a ton easier, let me tell you. they're basically ways to find out the possible genotypes of the kits from any two parents. you do them per trait, so for every two-letter trait on a cat, you do one. they look like this:
let's take this question, I know you possibly wont get the colou genes at first, but that is part one, so its fine. this is chocolate carrying cinnamon xx cinnamon. the genes for these two would be bb1 and b1b1. for the dense and dilute gene, they will both be Dd.
we'll do the black part first. set up your square like this:
b b1
b1 x xb1 x x
now, take the b from the first column and bring it down so that it falls into both boxes below it.
b b1
b1 b xb1 b x
and, if we do the same with the b1...
b b1
b1 b b1b1 b b1
see how that works? now, both of the b1 alleles on the side are carried over.
b b1
b1 bb1 b1b1b1 bb1 b1b1
the possible genotypes for the blacks will be bb1, or chocolate carrying cinnamon, and b1b1, cinnamon. now, we do the same thing with the dilutes.
D d
D x xd x x
D d
D DD Ddd Dd dd
as you can see, the kits from this litter can be homozygous dense, heterozygous dense, or dilute. when we put that all together for the kits, we get:
chocolate (carrying cinnamon) xx cinnamon
chocolate, cinnamon, lilac, fawn.you don't have to write in the litter results that the chocolate carries cinnamon. c:
-
Got it.
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]I retyped the definitions because it helps to stamp them in your mind.
alrighty, so this is to introduce the black factor, Dilution and the beginning of the red factor
Okay! first of all, we'll start with the vocab that'll be used throughout training.Homozygous - when a cat has two copies of the same gene (e.g two black genes)
Heterozygous - when a cat has two genes, each different. (e.g one chocolate and one black)
Phenotype - the most basic way to describe something (e.g a cat, a dog)
Genotype - the word used to reperesent a gene.
Eumenalin - the word used to show the black gene.
Pheomenalin - the word used to show the red gene.Before we start on the black gene, in my head I represent the black and red gene as a flower, the middle being the basic group (the black gene, the red gene) and the petals being sub catagories. (e.g black, chocolate, cinnamon)
now, as mentioned above the eumenalin gene has 3 strands. black, cinnamon and chocolate.BB = Black
bb = chocolate
bb1 = cinnamonAs you also may know, all cats on wcrpg carry dilute. The dilute for black is blue, the dilute for chocolate is lilac and the dilute for cinnamon is fawn.
DD = non dilute
Dd = non dilute cat carrying the dilute gene (but all cats carry this anyways)
dd = diluteFinally, the male and female chromosomes. The male have only one O gene and the other is Y, where as the mother have both O. Kittens can only have one cromozone from each parent (including the one that makes their gender) so the male get their genes from the mother and the females get their genes from the male. but in some cases if the male is red and the female is black, then the female can be tortie, taking each 1 cromosone from each parents and 'blending' it together to make a tortie.
oY = black factor male
OY = red factor male
oo = black factor female
OO = red factor female
Oo = tortie femaleYou understand, right? :) If so, we'll start with guessing the cat from the codes.
-
So, dilute is basically a lighter version of the colour?
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]in simple terms, yes
-
Alright, continue. c:
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]try to tell me what these cats are c:
Bb, Dd, Oo
bb1, dd, OY
b1b1, Dd, oo
b1b1, dd, oY
-
So, wait, is the last part where the gender is determined? I see o and y which makes me think of the x and y chromosomes, but it's about red and black...?
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]o is the definitive red gene. I don't quite understand your question
-
What I'm trying to say is, the female and male chromosomes part is a bit confusing to me. What I learned before was that the chromosomes are X and Y, with a female having two X's and a male having one of each, right? I don't understand what you meant when you said "the male get their genes from the mother and the females get their genes from the male".
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]females have two x's.
males have an x and a y.
males take there colours from both parents.
females take there colours from both parents.
it was a typo
-
Oh, I see.
So, if a cat has OO, they'd have red from the female, or...
I'm sorry for having to make you explain this much '._. -
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]I want you to ignore the red factor for now. I feel as if you should try to get the hang of the black factor first.
Try this instead:
Feel free to look up images of what these colours look like to compare them. I'm mobile rn.
So a basic review of the black factor[hr]
The black bases are located on the B-locus. These colours are NOT SEX LINKED so they can go to either gender of kittens. That's why there is no need for gender separation.Chocolate and Cinnamon are basically just much lighter versions of black, kind of like how the diluted colours are lighter versions of there base colours, fawn and cinnamon for example.
Black is most dominant of the three black bases. It is represented by a 'B'. It can carry chocolate and cinnamon but can be carried by neither. BB, Bb and Bb1 are all black cats.
BB - Homozygous black
Bb- Black carrying chocolate
Bb1 - Black carrying cinnamonChocolate is second dominant. It can carry cinnamon but not black. Chocolate is shown by a small 'b'. Being that it is still dominant, it only needs one copy to show, unless it's paired with black or its diluted version blue. So if chocolate was paired with black, you would automatically assume that the other black cat carries a copy of the chocolate gene, so chocolate would be possible.
'bb' and 'bb1' are chocolate cats. 'bb1' is chocolate carrying cinnamon.
Now cinnamon is what I call doubly recessive. It requires two copies to even show up at all. 'b1b1' is all that cinnamon can and will be. It cannot ever carry anything, but can pretty much be carried and masked my anything. If there isn't two copies, cinnamon won't show.
(( I'll do it bit by bit so I don't overwhelm you ^^
-
Alright, a note for myself, black is represented by B, chocolate b, and cinnamon b1. Right.
-
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]Right c:
-
ooft I thought I replied to this.
So, yes, continue. -
[fancypost borderwidth=0px; font-size: 8pt; line-height: 12px; width: 350px; text-align: justify;]try to tell me what these genotypes mean-
Bb
BB
bb1
b1b1
Bb1
b1B