Single Choice

Select the correct option: Refer to the given reactions. (i) Adenine + X$$\rightarrow$$ Adenosine (ii) Adenosine+ Y$$\rightarrow$$ Adenylic acid What does X and Y represent here?

AX - Phosphate group Y - Sugar molecule
BX - Sugar molecule Y - Phosphate group
Correct Answer
CX - Sugar molecule Y - Nitrogenous base
DX - Nitrogenous base Y - Sugar molecule

Solution

The coumpounds given here are the moleciles of the nucleic acids.
A nucleotise is the structure which forms when a sugar and a nitrogenous base is joined.
A nucleotide is a structure which forms whne a phosphrc acids bond with nucleoside.
Any nitrogenous base with prefix -sine is a nucleoside and -ylic acid is a nucleotide.

So, the correct option is 'X - Sugar molecule and Y - Phosphate group'

SIMILAR QUESTIONS

Cells - The Unit of Life

An acid soluble compound formed by phosphorylation of nucleoside is called

Cells - The Unit of Life

Both deoxyribose and ribose belong to a class of sugars called

Cells - The Unit of Life

An acid soluble compound formed by phosphorylation of nucleoside is called

Cells - The Unit of Life

Both deoxyribose and ribose belong to a class of sugars called

Cells - The Unit of Life

Genetic information is carried by the long chain molecules which are made up of

Cells - The Unit of Life

A N$$_2$$ base together with pentose sugar and phosphate forms OR Building-block unit of nucleic acid is a

Cells - The Unit of Life

On an average, how many purine N$$_2$$ bases are present in single coil of DNA

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