Revision

Ultra-Short Revision Points:

• Nucleic Acids = Polymers of Nucleotides.

• DNA = Universal genetic material (almost).

• RNA = Genetic material in some viruses; primarily a messenger.

• RNA Roles = Messenger, Adapter, Structural, Catalytic (MASC).

• Genomics = Era started by sequencing the complete human genome.

Most Important NCERT Lines to Revise:

• “RNA though it also acts as a genetic material in some viruses, mostly functions as a messenger.”

• “RNA has additional roles as well. It functions as adapter, structural, and in some cases as a catalytic molecule.”

Possible Exam Traps:

• Trap 1: “RNA is the genetic material in most viruses.” -> FALSE. NCERT explicitly says “some viruses”.

• Trap 2: “Only proteins can be catalytic.” -> FALSE. NCERT states RNA can act as a catalytic molecule.

• Trap 3: “Nucleic acids are monomers.” -> FALSE. They are polymers of nucleotides.