> From: "Lorri Ferguson" <[EMAIL PROTECTED]> > > 1. By and large it is men who are color blind, (women rarely are). > However women are the carriers, and sons of a woman who is color blind have > a genetic predisposition to be color blind also, CBness skips a generation.
You got me thinking about this, and I'm not sure it necessarily skips a generation. If a colour-blind male married a female carrier, I think the daughters would have a 50% chance of being colour blind (inheriting their father's recessive colour blind gene, and the one recessive colour blind gene their mother carries). I think... I find this whole subject of genetics fascinating. I wish I'd been born a couple of centuries later, by which time we'll probably have worked out what all the genes are, how they interact with each other and with the environment, and how and when they are switched on. At the moment there's so much we don't know. I was about to say that genetics is like lace - cross/twist, dominant/recessive gene. But then I remembered that many genes have more than two forms and don't do the simple dominant/recessive thing (eg blood groups). Mind you, what about cross/twist/turn? <g> Regards, Annette, London - To unsubscribe send email to [EMAIL PROTECTED] containing the line: unsubscribe lace [EMAIL PROTECTED] For help, write to [EMAIL PROTECTED]
