Answer:
A gene is a section of a double-stranded molecule known as DNA. This molecule is found within the nucleus of the cell, contained in threadlike structures called chromatin. The two strands form a double helix linked by a series of paired bases. The base adenine is always linked to thymine and the base cytosine is always linked to guanine.
Hey there, whats up
the answer is: <span>they trap heat in the atmosphere, warming the planet
hope it helps ;) good luck</span>
Extinction is the answer.