Concentration of DNA is measured by:: (A) Absorption at 260 nm, (B) D-oxyribose estimation, (C) Infrared examination, (D) Ultrasound examination
Answer is A. A i.e. Absorption at 260 nmConcentration (and quality) of nucleotides and ncleic acid (DNA/RNA) is measured in terms of "absorbance at 260 nmQ" with a Ultraviolet (UV) spectrophotometer.