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alina1380 [7]
3 years ago
11

PLEASE HELP DUE TODAY!!

Biology
1 answer:
Shalnov [3]3 years ago
5 0
The genetic fault that usually causes colour vision deficiency is passed on in what's known as an X-linked inheritance pattern.

This means:

1) it mainly affects boys, but can affect girls in some cases

2) girls are usually carriers of the genetic fault – this means they can pass it on to their children, but do not have a colour vision deficiency themselves

3) it's usually passed on by a mother to her son – the mother will often be unaffected as she'll normally just be a carrier of the genetic fault

4) fathers with a colour vision deficiency will not have children with the problem unless their partner is a carrier of the genetic fault

5) it can often skip a generation – for example, it may affect a grandfather and their grandson

6) girls are only affected if their father has a colour vision deficiency and their mother is a carrier of the genetic fault

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