Ultra-violet light causes — Environmental Science In Agricultural MCQ

Ultra-violet light causes

Formation of pyrimidines

Sticky metaphases

Photodynamic action

Destruction of hydrogen bonds between complementary DNA stands

Answer

Answer: Option D

Solution

Answer: Option D

Solution:

Ultra-violet light causes the destruction of hydrogen bonds between complementary DNA stands.
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight and constitutes about 10% of the total electromagnetic radiation output from the Sun.
Short-wave ultraviolet light damages DNA and sterilizes surfaces with which it comes into contact. The most deadly form of skin cancer, malignant melanoma, is mostly caused by UV radiation.