BIOMOLECULES AND ENZYMES

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BIOLOGY

NUCLEIC ACIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A nucleotide that can be found in both DNA and RNA would look like ____
A
phosphate group, sugar, thymine
B
phosphate group, sugar, uracil
C
Phosphate group, sugar, guanine
D
phosphate group, ribose, guanine
Explanation: 

Detailed explanation-1: -Three of the five nitrogenous bases are common to both DNA and RNA. These are adenine (A), cytosine (C), and guanine (G).

Detailed explanation-2: -The sugar-phosphate backbone forms the structural framework of nucleic acids, including DNA and RNA. This backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.

Detailed explanation-3: -The DNA and RNA Structures Nucleotides simply refer to nitrogenous bases, pentose sugar together with the phosphate backbone. Both DNA and RNA have four nitrogenous bases each-three of which they share (Cytosine, Adenine, and Guanine) and one that differs between the two (RNA has Uracil while DNA has Thymine).

Detailed explanation-4: -Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base.

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