Assertion (A) : UV spectrophotometry is commonly used to estimate nucleic acids.
Reason (R) : Nucleic acids absorb UV light maximally at 280 nm.
In the light of the above statements, choose the most appropriate answer from the options given below :
Assertion (A) Analysis: UV Spectrophotometry for Nucleic Acids
Assertion (A) states that UV spectrophotometry is commonly used to estimate nucleic acids. This is correct because nucleic acids, like DNA and RNA, contain aromatic bases that absorb ultraviolet light.
Reason (R) Analysis: Nucleic Acid Absorbance Wavelength
Reason (R) claims that nucleic acids absorb UV light maximally at 280 nm. This statement is incorrect. While UV spectrophotometry is used, the characteristic maximal absorbance wavelength for nucleic acids (DNA and RNA) is approximately 260 nm. The 280 nm wavelength is typically associated with the absorbance of proteins, specifically aromatic amino acids like tyrosine and tryptophan.
Conclusion
Based on the analysis:
- Assertion (A) is correct.
- Reason (R) is incorrect.
Therefore, the correct choice is that (A) is correct but (R) is not correct.
Similar Questions
- Lectins are :
- Which of the following viruses has a segmented genome ?
- Which of the following heavy metal containing chemical agent is used for treatment of burns ?
- Blue-white screening is based on the activity of :
- Which growth phase is most important for antibiotic production ?
- What is Trichoderma harzianum used for in agriculture ?
- Which of the following is always present in a Virus ?
- The enormous diversity exhibited by MHC molecules within a species originates from :
- Selection for traits that are sensitive to population density and are favoured at high densities is known as :
- Aminopterin is added in HAT medium to :
Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
