Gene mutation - A Level Biology

Biology A Level covering the following objectives
viii Understand the term gene mutation as illustrated by base deletions, insertions and substitutions.
ix Understand the effect of point mutations on amino acid sequences, as
illustrated by sickle cell anaemia in humans.

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People of European descent may also lack certain genetic variations that are common in other populations, such as lactase persistence, which allows individuals to digest dairy products throughout their lifetime. This genetic variation is most common in people of European descent, but is less common in other populations, such as those of African or Asian descent. In addition, people of European descent may also have a higher prevalence of certain genetic diseases, such as cystic fibrosis or hemochromatosis. It is important to note that genetic variations exist in all populations and do not determine an individual's worth or abilities.

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Hey i was wondering if students need the types of substitution reactions like nonsense, missense or silent substitutions?

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