DNA polymerase:
A. Is the main enzyme for RNA synthesis
B. Is DNA dependent DNA polymerizing enzyme
C. Is a highly efficient enzyme
D. Is catalyzes a reaction with a high degree of accuracy
(1) C, D             

(2) A, B, C, D               

(3) B, C, D             

(4) A, B, C

In eukaryotes the gene expression is regulated at:
A. Transcriptional level
B. Processing level
C. Transport of mRNA from nucleus to the cytoplasm
D. Translational level
(1) A, C               

(2) A, B, C, D                 

(3) B, C, D                     

(4) A, B, C

Characteristic(s) of most DNA is / are:
A. A pairs with T by 2 hydrogen bonds.
B. Antipolarity of complementary chains
C. 20Aº diameter
D. 10 bps/turn 
(1) A, C                 

(2) A, B, C, D                     

(3) B, C, D                 

(4) A, B, C

A. DNA polymorphism plays important role in evolution and speciation.
B. 99.9% nucleotides bases are exactly same in all people
C. Chromosome 1 has the fewest genes (23) and Y-chromosomes has most genes (2968)
D. BAC and YAC have been used in Human Genome Project.
(1) All correct                   

(2) All incorrect

(3) A, B, D are correct       

(4) B, C, D are correct

Go through the following diagram of Nucleosome (structural unit of chromatin). Identify its componential parts indicated by A, B and C:

If the DNA of this virus was labeled with 32P and the protein of the virus was labeled with 35S, which molecule(s) would be present inside the cells?
(1) 35S and 32P

(2) 35S only

(3) 32P only

(4) Neither molecule would be present inside the cell

Which of the following statements is correct?
I. The biochemical nature of genetic material was not defined from the experiments conducted by Griffith
II. Working on transformation Avery et al concluded DNA is genetic material but not all biologists were convinced
III. RNA is the genetic material in TMV, QB bacteriophage etc.
IV. DNA is the predominant genetic material while RNA performs dynamic functions of messenger adapter
V. Viruses having DNA genome and having shorter life span mutate and evolve faster
(1) All are correct             

(2) I and II             

(3) All except V               

(4) III and IV

The length of DNA has 45000 base pairs. How many complete turns will the DNA molecule take?

(1) 45000            

(2) 450                

(3) 4500               

(4) 45

The full form of ELSI is:

(1) Embedded Low Software Index    

(2) Ear Lung Spleen Immunity

(3) Ethical Legal and Social Issue      

(4) Endonuclease Ligase Surface Immunity

The force that holds DNA together in a double helix is:

(1) The force of the twist                   

(2) Covalent bonds

(3) Ionic bonds or ionic interactions   

(4) Hydrogen bonds