Question

why is the central dogma essential for life?

• it explains how genetic information becomes functional proteins
• it shows how proteins make dna
• it explains cell division
• it describes energy production

Explanation:

The Central Dogma of molecular biology describes the flow of genetic information: DNA is transcribed to RNA, which is then translated into proteins. The first option correctly states that it explains how genetic information (from DNA/RNA) becomes functional proteins. The second option is incorrect as proteins do not make DNA (the flow is DNA to RNA to protein, not reverse in terms of protein making DNA). The third option is wrong because cell division (like mitosis/meiosis) is explained by other cellular processes, not the Central Dogma. The fourth option is incorrect as energy production (e.g., cellular respiration) is a different metabolic process, not related to the Central Dogma.

Answer:

A. It explains how genetic information becomes functional proteins