Biology Regents Practice Exam 2025 - Free Practice Questions and Study Guide

Question: 1 / 400

Which type of biological molecule serves as the genetic blueprint for organisms?

Proteins

Nucleic acids

Nucleic acids, specifically DNA and RNA, serve as the genetic blueprint for organisms. DNA contains the instructions needed for the development, functioning, growth, and reproduction of all known living organisms and many viruses. It carries the genetic information essential for the synthesis of proteins, which play a crucial role in various cellular functions. The structure of DNA, with its sequence of nucleotides, directly influences the traits and characteristics of an organism by determining the amino acid sequences in proteins. RNA also plays a vital role in translating DNA's instructions into proteins. Thus, nucleic acids are fundamental to heredity and the continuity of life, making them the key molecules responsible for storing and transmitting genetic information.

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Carbohydrates

Lipids

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