मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?

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प्रश्न

Dinucleotide is obtained by joining two nucleotides together by phosphodiester linkage. Between which carbon atoms of pentose sugars of nucleotides are these linkages present?

पर्याय

  • 5′ and 3'

  • 1′ and 5′

  • 5′ and 5′

  • 3′ and 3′

MCQ
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उत्तर

5′ and 3'

Explanation:

Nucleotides are joined together by phosphodiester linkage between 5' and 3' carbon atoms of the pentose sugar.

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पाठ 14: Biomolecules - Multiple Choice Questions (Type - I) [पृष्ठ २०४]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 14 Biomolecules
Multiple Choice Questions (Type - I) | Q 8 | पृष्ठ २०४

संबंधित प्रश्‍न

Discuss the optical activity of lactic acid.


Define the following as related to proteins:

Peptide linkage


Write one difference between α-helix and β-pleated structures of proteins.


Differentiate between the following :

Peptide linkage and Glycosidic linkage 


Which of the following biomolecules is insoluble in water?


Optical rotations of some compounds along with their structures are given below which of them have D configuration.

(I)
(II)
(III)

Proteins can be classified into two types on the basis of their molecular shape i.e., fibrous proteins and globular proteins. Examples of globular proteins are:

(i) Insulin

(ii) Keratin

(iii) Albumin

(iv) Myosin


In fibrous proteins, polypeptide chains are held together by:

(i) van der Waals forces

(ii) disulphide linkage

(iii) electrostatic forces of attraction

(iv) hydrogen bonds


Which moieties of nucleosides are involved in the formation of phosphodiester linkages present in dinucleotides? What does the word diester in the name of linkage indicate? Which acid is involved in the formation of this linkage?


The main structural feature of proteins is


Explain formation of peptide linkage in protein with an example.


Given below are two statements labelled as Assertion (A) and Reason (R).

Assertion (A): Proteins are found to have two different types of secondary structures viz alpha-helix and beta-pleated sheet structure.

Reason (R): The secondary structure of proteins is stabilized by hydrogen bonding.

Select the most appropriate answer from the options given below:


Out of the following, which type of interaction is responsible for the stabilisation of the α-helix structure of proteins?


The correct structure of Ruhemann's Purple, the compound formed in the reaction of ninhydrin with proteins is:


An α-helix is a structural feature of ______.


β-pleated sheet structure in proteins refers to ______.


Write a classification of proteins with an example.


Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (Nterminal).

Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of a type and two subunits β type.)

In the light of the above statements, choose the correct answer from the options given below:


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