Answer:
The mutation, which affects a protein called CCR5 on the surface of white blood cells, prevents HIV from entering these cells and damaging the immune system. Around 10% of today's Europeans carry the mutation, a significantly higher proportion than in other populations.
Explanation:
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C) the ribosomes synthesize proteins
Gravity is a force that can make things go down hill.
The thylakoids contain two photosystems. They are the site of light-dependent reactions and are a <span>membrane-bound compartment inside chloroplasts and cyanobacteria.</span>
