How do genetics work?

2033 Views 9 Replies 7 Participants Last post by Cait, Apr 7, 2009

Demi

Discussion Starter · Feb 23, 2009

I've looked at the lists of codes,but I don't understand how that makes the colour of a baby mouse?? :?:

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Cait

· #10 · Apr 7, 2009

yyoung said:
Thanks for that easy to understand genetics lesson. I think I am getting a bit more each time. I have a question though...

When you say about the 't' gene being dominant and only needing one from either parent to produce a tan belly....does that mean if the mother or father is tan bellied that all of the offspring will be too. It's just if that is the case then I got a mouse from pet shop (black and tan) and she was pregnant and had 7 babies. 2 of the 7 do not have tan bellies.

I have probably not 'quite got it' but I just wondered...

Tan is dominant to self so it only needs one copy to show up. Therefore your tan doe has only got one copy of the tan gene and the babies who are not tan inherited the other gene along with one from their father.

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