Two nucleotides are joined together by a linkage known as:
Biomolecules · Class 12 · JEE Main Previous Year Question
Two nucleotides are joined together by a linkage known as:
- a✓
Phosphodiester linkage
- b
Glycosidic linkage
- c
Disulphide linkage
- d
Peptide linkage
Phosphodiester linkage
Step 1: Monomer Units — Nucleotides are the building blocks of nucleic acids (DNA/RNA). They consist of a pentose sugar, a nitrogenous base, and a phosphate group.
Step 2: Linkage Mechanism — During polymerization, the -phosphate group of one nucleotide joins with the -hydroxyl group of the next sugar.
Step 3: Identification — This specific connection is known as a phosphodiester linkage. Correct option is (a).
Key Point: This linkage forms the sugar-phosphate backbone of the genetic strands.
Practice this question with progress tracking
Want timed practice with adaptive difficulty? Solve this question (and hundreds more from Biomolecules) inside The Crucible, our adaptive practice platform.
More JEE Main Biomolecules PYQs
Which of the following is the correct structure of L-fructose?
Identify the number of structure/s from the following which can be correlated to D-glyceraldehyde.
Identify correct conversion during acidic hydrolysis from the following: (A) starch gives galactose. (B) cane sugar gives equal amount of glucose and fructose. (C) milk sugar gives glucose and…
Fat soluble vitamins are: A. Vitamin B1 B. Vitamin C C. Vitamin E D. Vitamin B12 E. Vitamin K Choose the correct answer from the options given below:
Which of the following acids is a vitamin?