Central government.state government control
The proteins that help defend the body against bacteria, toxins, and allergens are called antibodies. The antibody<span> (Ab) protein is also known as an immunoglobulin (Ig).
</span>These<span> large Y-shaped proteins are</span><span> produced by the immune system in order to prevent the body in response to the presence of a foreign substance. The foreign substance is called antigen.
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A chromosome contains one long DNA strand.
B.
<span>Mutations that increase fitness is type of mutations do scientists look for in a molecular clock. </span>
