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This set of Biology Multiple Choice Questions & Answers (MCQs) focuses on Biomolecules-2 Set 2
Q1 | What does the following diagram show?
- Quaternary structure of protein
- polypeptide chain
- Molecule structure of protein
- Secondary structure of protein
Q2 | The classification of the protein in two types depends on
- Structure and function
- Types of amino acid
- Numbers of amino acid
- none above
Q3 | Nuclein separated in to which components?
- Protein + chromosome
- Protein + Nucleic acid
- Nucleic acid + nitrogen base
- Nuceicoside + Nucleotide
Q4 | Which one of the following is the major component of chromosome?
- Nucleic acid
- Protein
- Nitrogen base
- Lipid
Q5 | Nucleic acid contains which group of molecules in their constitution?
- C, H, N and S
- C, H, O, N and S
- C, H, N, O, and P
- C, H, N and O
Q6 | Nucleic acids means
- A major components of chromosomes
- Polynucleotide of structural units known as nucleotides
- Small gene carrying bodies in the nuclei of complex cells
- Both a & b
Q7 | Which are the structural units of DNA?
- Nitrogen base
- Pentose sugar
- nucleotide
- phosphoric acid
Q8 | Which one group is the subunit of nucleotide?
- Pentose sugar, nitrogen
- Purina, pyrimidine, phosphorus
- Nitrogen base, sugar
- pentose sugar, Nitrogen base , phosphoric acid
Q9 | Which of the following will be characteristically different in different living organism?
- Protein
- Nucleic acid
- Enzyme
- Carbohydrate
Q10 | Which one is not a polymer?
- ATP
- Hemoglobin
- Nucleotide
- Enzyme
Q11 | The illustration given below is which nitrogen base:
- Uracil
- Cytosine
- Thymine
- Ribose
Q12 | The illustration given below is which nitrogen base:
- Guanine
- Cytosine
- Uracil
- Adenine
Q13 | The following diagram represents the nitrogenous bases of nucleic acid Molecules Identify the correct combination:
- A= Guanine , B= Uracil
- A= Adenine , B= Thymine
- A= Cytosine , B= Adenine
- A= thymine , B= Guanine
Q14 | What is Ribonucleoside?
- Ribose + Nucleic acid
- Ribose + Nitrogen base
- Ribose + Phosphate
- Ribose + Adenine
Q15 | What ‘A’ and ‘B’ indicates in the given diagram?
- A= CH2OH, B= OH
- A= CH2OH, B= H
- A= CH, B= OH
- CH2, B= H
Q16 | Which two sequential carbon number of nucleotides join through phosphodiaster bond?
- 3 and 5
- 1 and 4
- 1 and 6
- 2 and 5
Q17 | What is Guanine?
- Purine
- Hormone
- Enzyme
- Pyrimidine
Q18 | Ribonucleoside formed from ribonucleotide while:-
- It made from sugar
- It made from nitrogen base
- It made from phosphate
- a, b, c all above
Q19 | DNA is localized in which cell organelle?
- Vacuoles
- Lysosomes
- Golgi apparatus
- Nucleus, mitochondria, chloroplast
Q20 | A DNA stand is directly involved in the synthesis of all the following except –
- Another DNA Stand
- t- RNA
- m-RNA
- Protein
Q21 | Nucleic acids were discovered by whom?
- Crick
- Wilkinson
- meischer
- Watson
Q22 | Nucleic acids are related with which activity?
- Digestion
- Respiration
- Reproduction
- Heredity
Q23 | What ‘A’ and ‘B’ indicates in the given structure?
- A= CH2, B= N
- A= (>C=0), B= NH
- A= NH, B= NH
- A=NH2, B=NH
Q24 | Chemically DNA differs from RNA by:
- Thymine and deoxyribose present in DNA and Uracil and ribose in RNA
- Uracil and deoxyribose in DNA and thymine and ribose in RNA
- Deoxyribose in DNA and ribose in RNA
- Two nucleotide in DNA and one nucleotide in RNA
Q25 | Nucleic acids are polymers of which molecules?
- Nucleosides
- Nucleotides
- Polypeptides
- polysomes