NEET BIOLOGY

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CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The differences between two molecules include the type of sugar that forms a section of the molecules and the identity of one of the four nitrogenous bases that make up another section of the molecules. These two molecules are-
A
proteins
B
lipids
C
nucleic acids
D
complex carbohydrates
Explanation: 

Detailed explanation-1: -There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.

Detailed explanation-2: -So that is why this the sugar only provide the necessary elements to the carbohydrates, but not to all the 4 macro molecules. So the answer is no, it doesn’t.

Detailed explanation-3: -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-4: -Answer and Explanation: The smaller, repeating subunits that make up nucleic acids are called nucleotides. A nucleotide is composed of three district portions-a ribose sugar, phosphate group(s), and a nitrogenous base.

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