Ultraviolet light causes: - Vidyadip

MCQ

Ultraviolet light causes:

✓
Destruction of hydrogen bonds between complementary $\ce{DNA}$ strands.
B
Photodynamic action
C
Sticky metaphases
D
Formation of pyrimidines

✓

Answer

Correct option: A.

Destruction of hydrogen bonds between complementary $\ce{DNA}$ strands.

$\ce{DNA}$ is one of the prime molecules and provides stability for proper functioning and existence of all living systems.
Ultra$-$violet radiations are power molecules whose exposure breaks the hydrogen bonds of dna and thus altering its structure and affecting the genomic stability.

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