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
- Blue-white screening is based on the activity of :
- Which of the following is not a feature of RNA ?
- RNAi mediated RNA interference mediates which of the following ?
- Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Some microorganisms can use nitrate as a terminal electron acceptor under anaerobic conditions.
Reason (R) : Nitrate can be fully reduced to ammonia in the process of denitrification.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : A cDNA library contains only expressed genes.
Reason (R) : A cDNA library is made from the mRNA molecules of a cell population.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Electrophoretic procedures are generally not used to purify proteins.
Reason (R) : Electrophoresis is an analytical method.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : E.coli is widely used as a host in RDT.
Reason (R) : E.coli grows rapidly and its genetics are well understood.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes.
Reason (R) : Along the mountain gradients, biodiversity is normally greater in the lower altitudes as compared to the higher altitudes.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Ruminants are able to digest complex plant material.
Reason (R) : The Rumen community contains a community of microorganisms producing a variety of enzymes that can degrade plant polymers.
In the light of the above statements, choose the most appropriate answer from the options given below : - Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : IgG is the first immunoglobulin produced during a primary immune response.
Reason (R) : IgM has a pentameric structure that allows efficient activation of the complement system.
In the light of the above statements, choose the most appropriate answer from the options given below :
Important Questions from Mixed Topic (CUET PG)
- Kalpsutra, the illustrated canonical text is from:-
- The Harappan city almost exclusively devoted to craft production was-:
- Mohandas Karamchand Gandhi launched quit India movement after the failure of:-
- The "Objectives Resolution" was introduced in constituent assembly by:-
- Who among the following was not a member of the constituent assembly:-
