CBSE BoardEnglish MediumSTD 10ScienceMODEL PAPER 101 Mark
MCQ
The component of a chromosome that controls heredity is
A
Histones
B
Proteins
C
RNA
D
DNA
✓
Answer
(d) DNA Explanation: Heredity is the passing on of traits from parents to their offspring, either through asexual reproduction or sexual reproduction; the offspring cells or organisms acquire the genetic information of their parents. Heritable traits are known to be passed from one generation to the next via DNA, a molecule that encodes genetic information.
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