The answer is A. DNA is the genetic code that eventually gets transcribed into RNA and that RNA is then translated into protein chains (polypeptides). Thus the ultimate purpose of DNA is to build these proteins.
B is wrong because while DNA itself exists in a double helix, its main function is not to build other double helix models. In fact, RNA exists in single helix form.
C is wrong because the brain does not construct the body.
D is wrong because DNA is just a body of information, and not a historical record.
Answer:
The present greatest problem for Eastern Europe is water quality.
Explanation:
Sectarianism is a political or cultural conflict between two groups often related to the form of government they live under. ... Common examples of these divisions are denominations of a religion, ethnic identity, class, or region for citizens of a state and factions of a political movement.
Well, as we know from the formula,
Distance = speed of recession/Hubble constant
so we can infer that as distance become larger, the recession velocities will also become larger
Answer:
The reasons that cities boomed during the Middle Ages are more employment opportunities, increased trade, and growing interest in culture and art.