LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

MOLECULAR BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
RNA is different from DNA, because RNA:
A
Is a single strand
B
Contains the sugar ribose
C
Replaces Thymine for Uracil
D
All of these answers
Explanation: 

Detailed explanation-1: -DNA is a double-stranded molecule that has a long chain of nucleotides. RNA is a single-stranded molecule which has a shorter chain of nucleotides. DNA replicates on its own, it is self-replicating. RNA does not replicate on its own.

Detailed explanation-2: -RNAs also contain nitrogenous bases linked to sugar and phosphate like DNA, but RNAs contain ribose sugar and Uracil instead of deoxyribose sugar and Thymine in DNA.

Detailed explanation-3: -So, the three main structural differences between RNA and DNA are as follows: RNA is single-stranded while DNA is double-stranded. RNA contains uracil while DNA contains thymine. RNA has the sugar ribose while DNA has the sugar deoxyribose.

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