THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
One of four nitrogenous bases
|
|
|
5 carbon sugar
|
|
|
phosphate group
|
Detailed explanation-1: -The three components of a nucleotide are nitrogenous base, sugar and phosphate.
Detailed explanation-2: -A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G) and thymine (T). In RNA, the base uracil (U) takes the place of thymine.
Detailed explanation-3: -Nucleotides are composed of three subunit molecules: a nucleobase, a five-carbon sugar (ribose or deoxyribose), and a phosphate group consisting of one to three phosphates.
Detailed explanation-4: -The sugar is the 3’ end, and the phosphate is the 5’ end of each nucleiotide. The phosphate group attached to the 5’ carbon of the sugar on one nucleotide forms an ester bond with the free hydroxyl on the 3’ carbon of the next nucleotide.