Top 150+ Solved Biomolecules-2 MCQ Questions Answer
Q. Nucleic acids means
a. A major components of chromosomes
b. Polynucleotide of structural units known as nucleotides
c. Small gene carrying bodies in the nuclei of complex cells
d. Both a & b
Q. Which are the structural units of DNA?
a. Nitrogen base
b. Pentose sugar
c. nucleotide
d. phosphoric acid
Q. Which one group is the subunit of nucleotide?
a. Pentose sugar, nitrogen
b. Purina, pyrimidine, phosphorus
c. Nitrogen base, sugar
d. pentose sugar, Nitrogen base , phosphoric acid
Q. Which of the following will be characteristically different in different living organism?
a. Protein
b. Nucleic acid
c. Enzyme
d. Carbohydrate
Q. The following diagram represents the nitrogenous bases of nucleic acid Molecules Identify the correct combination:
a. A= Guanine , B= Uracil
b. A= Adenine , B= Thymine
c. A= Cytosine , B= Adenine
d. A= thymine , B= Guanine
Q. What is Ribonucleoside?
a. Ribose + Nucleic acid
b. Ribose + Nitrogen base
c. Ribose + Phosphate
d. Ribose + Adenine
Q. What ‘A’ and ‘B’ indicates in the given diagram?
a. A= CH2OH, B= OH
b. A= CH2OH, B= H
c. A= CH, B= OH
d. CH2, B= H
Q. Which two sequential carbon number of nucleotides join through phosphodiaster bond?
a. 3 and 5
b. 1 and 4
c. 1 and 6
d. 2 and 5
Q. Ribonucleoside formed from ribonucleotide while:-
a. It made from sugar
b. It made from nitrogen base
c. It made from phosphate
d. a, b, c all above
Q. DNA is localized in which cell organelle?
a. Vacuoles
b. Lysosomes
c. Golgi apparatus
d. Nucleus, mitochondria, chloroplast
Q. A DNA stand is directly involved in the synthesis of all the following except –
a. Another DNA Stand
b. t- RNA
c. m-RNA
d. Protein