NEET BIOLOGY

GENETICS AND EVOLUTION

MOLECULAR BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists at a university are examining a molecule that contains sugar, phosphate, adenine, and uracil. Which of the following molecules is being examined?
A
RNA
B
DNA
C
protein
D
enzyme
Explanation: 

Detailed explanation-1: -Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called deoxyribose (left in image), the sugar in RNA is called simply ribose (right in image).

Detailed explanation-2: -The four types of RNA are mRNA, tRNA, rRNA and heterogeneous nuclear RNA or hn RNA. they have different functional roles in the cell.

Detailed explanation-3: -ribose, also called D-ribose, five-carbon sugar found in RNA (ribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the RNA polymer and binds to nitrogenous bases.

Detailed explanation-4: -Both DNA and RNA are made up of a nitrogen base, a phosphate group, and a sugar base, and the two nucleotides get connected with the help of phosphodiester bonds and form a long chain of macromolecules.

There is 1 question to complete.