By process of elimination you can deduce the answer:
A mutation causing uncontrolled cell division in human tissue cells is cancer and definitely not beneficial.
A mutation resulting in partial or complete loss of chlorophyll pigments in plants will lead to a plant not being able to photosynthesise and therefore unable to respire leading to death.
A mutation resulting in a squirrel being born without ovaries means the squirrel will be unable to reproduce and there for is not beneficial.
The answer is therefore a mutation inhibiting human immunodeficiency virus from entering the host cell. This means that the person who has this gene is unable to contract HIV which is beneficial
They regulate and function and form the structures of the body's organs and tissues. They do most of the work in their cells, and they are a major source of energy.
Hope that helped you.
The statement is
"True".<span>
<span>Source control program are aimed to reduce the cultivation of
opium, coca, marijuana, poppies etc and their eradication along with other
measures. The idea is that when there will be fewer crops available for the
drug production, the price will increase and potentially less people will have
access to drugs. </span></span>
The lock is a enzyme and the key is a substrate. Only the correct key size fits into the key hole of the lock
The answer is Alfred Wallace.
Darwin began formulating his theory of natural selection in the late 1830s but he went on working silently on it for twenty years. He wanted to amass a wealth of evidence before publicly presenting his idea. During those years he corresponded briefly with Wallace (right), who was exploring the wildlife of South America and Asia. Wallace supplied Darwin's help publishing his own ideas on evolution. He sent Darwin his theory in 1858, which, to Darwin's shock, nearly replicated Darwin's own.