Biology Biomolecules NUMS 2024
PMDC Verified Question 35 of 142
Nucleoproteins are involved in:
A
Cell to cell recognition
B
Passing hereditary information to next generation
C
Ensuring fast speed of nerve impulse
D
Acting as a surface marker
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Passing hereditary information to next generation
Concept:

Conjugated molecules are named by combining the names of their constituent parts, dictating their physiological location and function.

Solution:

  • A Nucleoprotein is a complex formed by the direct binding of a nucleic acid (DNA or RNA) to a protein structure.


  • The most prominent biological example is Chromatin/Chromosomes, where long strands of DNA are tightly spooled around basic Histone proteins to protect the delicate genetic code.


  • Because these DNA-protein complexes physically constitute the chromosomes, their primary, foundational biological role is passing hereditary information to the next generation safely during cell division.


Why other options are incorrect:

  • Cell to cell recognition / Surface marker: This is the job of Glycoproteins (sugar + protein) sticking out of the cell membrane, entirely unrelated to nuclear DNA complexes.


  • Fast speed of nerve impulse: This relies on the myelin sheath, which is formed by massive amounts of Sphingolipids (lipids), not nucleoproteins.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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