Question

Find the correct combination that can form a ribonucleotide of RNA.
A. Adenine + deoxyribose + phosphate
B. Uracil + ribose + phosphate
C. Thymine + deoxyribose + phosphate
D. Guanine + deoxyribose + phosphate

Answer 1

Hint: Ribonucleic acid (RNA) is a molecule similar in structure to DNA. Unlike DNA, RNA is single-stranded.

Complete Answer:
- RNA is a polymer made by hanging together individual ribonucleotides, consistently by including the 5'- phosphate group of one nucleotide onto the 3'- hydroxyl group of the past nucleotide.
- Like DNA, every RNA strand has a similar fundamental structure, made out of nitrogenous bases covalently bound to a sugar-phosphate backbone . Nonetheless, dissimilar to DNA, RNA is normally single stranded.
- Additionally, the sugar in RNA is ribose rather than deoxyribose (ribose contains one more hydroxyl group on the subsequent carbon). RNA comprises four nitrogenous bases: adenine, cytosine, uracil, and guanine.
- Uracil is a pyrimidine that is fundamentally like the thymine, another pyrimidine that is found in DNA. Like thymine, uracil can base-pair with adenine. Although there are multiple types of RNA molecules, the basic structure of all RNA is similar.

So, the correct answer is option B.

Note: RNA is ribonucleic acid. It is a polymer of ribonucleotides. Ribonucleotides are phosphoric acid esters of ribonucleosides. The ribonucleosides are formed from pentose sugar ribose and nitrogenous bases which can be purine (adenine or guanine) or pyrimidine (cytosine or uracil).An RNA strand has a backbone which is composed of alternating sugar (ribose) and phosphate groups.Each sugar is attached with one of four bases-adenine (A), uracil (U), cytosine (C), or guanine (G).