MCQs on Nucleotide

NEET Biology is the scoring paper in the medical entrance examination. Here, you will discover the NEET Biology MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Biology objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Biology Nucleotide Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Nucleotide

1. A phosphodiester bond is present in
(a) Nucleic acids in a nucleotide
(b) Monosaccharides in a polysaccharide
(c) Amino acids in a polypeptide
(d) Fatty acids in a diglyceride

Answer

Answer: (a)


2. Uridine present in RNA is
(a) nucleotides
(b) pyrimidine
(c) purine
(d) nucleoside

Answer

Answer: (d)


3. Nucleic acids are a polymer of nucleotide monomeric units. Each nucleotide consists of
(a) base­-sugar-­OH
(b) sugar-­phosphate
(c) base­-sugar-­phosphate
(d) (base­-sugar­-phosphate)x

Answer

Answer: (c)


4. A DNA segment contains 100 Adenine and 100 cytosines, how many nucleotides are present in the segment?
(a) 100
(b) 200
(c) 400
(d) 50

Answer

Answer: (c)


5. Nucleoside contains
(a) base-sugar
(b) base-phosphate
(c) base-sugar-phosphate
(d) sugar-phosphate

Answer

Answer: (a)


6. ATP is a
(a) nucleoside
(b) nucleotide
(c) vitamin
(d) nucleic acid

Answer

Answer: (b)


7. Find the correct statement about phosphodiester linkage between adjacent nucleotides in nucleic acids
(a) 3’-phosphate of one nucleotide joins the 3’-hydroxyl of the next nucleotide
(b) 3’-phosphate of one nucleotide joins the 5’-hydroxyl of the next nucleotide
(c) 5’-phosphate of one nucleotide joins the 5’-hydroxyl of the next nucleotide
(d) 5’-phosphate of one nucleotide joins the 3’-hydroxyl of the next nucleotide

Answer

Answer: (d)


8. The sugar molecule present in nucleotide is
(a) triose
(b) tetrose
(c) pentose
(d) hexose

Answer

Answer: (c)


9. Which of the following nucleotide contains only ribose sugar and not deoxyribose?
(a) Thymine – pentose sugar-phosphate
(b) Uracil – pentose sugar-phosphate
(c) Thymine – pentose sugar-phosphate
(d) Cytosine – pentose sugar-phosphate

Answer

Answer: (b)


10. Purine base found in RNA is
(a) Cytosine
(b) Thymine
(c) Guanine
(d) Uracil

Answer

Answer: (c)


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