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Heredity and Evolution
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16/10/2021 5:05 pm
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(a) State one advantage of variation to a species.
(b) What are sex chromosomes? How many sex chromosomes are there? Name them.
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16/10/2021 5:07 pm
(a) The advantage of variation to a species is that it increases the chances of its survival in a changing environment.
(b) The chromosomes which determine the sex of a person are called sex chromosomes.
There are two types of sex chromosomes: X and Y chromosomes.