Question Bank No: 1

1. The four nitrogen base sequence which form the code words for DNA language are

 a)UTAC
 b)ACTU
 c)AGCU
 d)ATCG

2. Which of the character is not applicable to t RNA

 a)It is the smallest of the RNAs
 b)It act as an adapter for aminoacid
 c)It has clover leaf like structure
 d)It is the largest to the RNAs

3. Find the correct combination that can form a nucleotide of RNA

 a)Adenine + Deoxyribose + Phosphate
 b)Thyamine + Ribose + Phosphate
 c)Uracil + Deoxyribose + Phosphate
 d)Uracil + Ribose + Phosphate

4. Usually ------is the initiation codon of translation process

 a)AUU
 b)AUG
 c)AGU
 d)GUA

5. The length of DNA having 23 base pairs is

 a)78Ao
 b)78.4 Ao
 c)78.2 Ao
 d)74.8 Ao

6. One of the following is a simple protein

 a)Nucleoprotein
 b)Glycoprotein
 c)Lipprotein
 d)Albumins

7. Which one is not an example for hydrolases

 a)Dehydrogenase
 b)Proteases
 c)Amylases
 d)Esterases

8. A DNA strand with nitrogenous base sequence ATTGCC will have the sequence in RNA is

 a)AUUG
 b)ATCGCC
 c)ATTGCA
 d)UGGACC

9. The protein present largely in hairs is

 a)Glutellin
 b)Aleurone
 c)Keratin
 d)Globulin

10. Middle lamella of plant cell wall is formed by

 a)Cellulose
 b)Calcium pectate
 c)Sodium pectate
 d)Calcium carbonate

11. The structural polysaccharide present in the plant cell wall is

 a)Chitin
 b)Cellulose
 c)Starch
 d)Glycogen

12. Which of the following is an Oligosaccharide

 a)Glucose
 b)Fructose
 c)Ribose
 d)Maltose

13. The primary structure of a protein is due to

 a)Ionic bonds
 b)Peptide bonds
 c)S-S linkage
 d)Hydrogen bonds

14. Two poly nucleotides in DNA are held together by

 a)Nitrogen bonds
 b)Oxygen bonds
 c)Hydrogen bonds
 d)Glycosidic bonds

15. The smallest enzyme is

 a)Carbonic unhydrase
 b)Peroxidase
 c)Zymase
 d)Lysozyme

16. The enzyme which can cut the DNA strand at specific sites is

 a)Ligase
 b)Restriction endonuclease
 c)Hexose Kinase
 d)Isomerases

17. Nucleotide base present in RNA but not in DNA is

 a)Cytosine
 b)Uraul
 c)Thymine
 d)Guanine

18. The sugar present in RNA is

 a)Ribose
 b)Arabinose
 c)Xylose
 d)Erythose

19. The most abundant protein is

 a)Cytochromes
 b)RUBISCO
 c)PEPCO
 d)Keratin

20. Distance between two successive Nitrogenous bases of DNA is

 a)34A0
 b)3.4A0
 c)10A0
 d)50A