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sergiy2304 [10]
3 years ago
13

I couldn’t figure it out , please me .

Biology
1 answer:
suter [353]3 years ago
7 0

1.

The answer is clearly "C" because an adaptive feature is a feature in which a living organism has adapted to, for example:

Millions of years ago, fish and other water creatures evolved to breathe on the surface, and not just in the water. However, this process took many years to adapt to the climate.

2.

I know that this is a gene so I assume, by the wording that this is a length of DNA from another human. Can't particularly explain this very clearly though, sorry. You can read more about it here though by searching about it, sorry I can't put the link as my answer will be removed.

I hope this helps you but if it does not, don't be mean! Message me and I will try my hardest to resolve my answer! :D

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The extra X chromosome is received from mother.

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Here both the parents are normal in terms of colour vision. So the father cannot have the gene of colour blindness because if it was present, then father would have been colour blind because he has only one X chromosome per cell. So its present in mother who is heterozygous in terms of colour blind gene. So the extra X chromosome also came from her which made the presence of two defective X chromosomes in the offspring and made it colour blind.

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