🎓 GED Exam Prep

What is the primary role of DNA in living organisms?

A To transport oxygen in the blood.
B To store and transmit genetic information.
C To provide structural support to cells.
D To catalyze biochemical reactions.

✓ Correct Answer: Option B

DNA (deoxyribonucleic acid) carries the genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

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