List of practice Questions

Which one of the recombinant DNA techniques is almost obsolete?

What is the function of DNA gyrase in circular DNA?

Which of the following is the example of Gram-negative bacteria?

Which of the following are viral diseases?
(A) Yellow fever
(B) Hepatitis B
(C) Chickenpox
(D) Rabies
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Lederberg and Tatum describe the phenomena of-

Match List I with List II:

List I	List II
(A) D’Herelle and Twort	(I) Bacterial transformation
(B) Beadle and Tatum	(II) Penicillin
(C) Fleming	(III) One-gene-one-enzyme hypothesis
(D) Griffith	(IV) Bacterial viruses

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Vaccine is not available for which disease?

Antibody formed immediately after infection is-

Arrange the steps involved in Gram-stain procedure:
(A) Staining with Crystal Violet
(B) Staining with Gram’s Iodine
(C) Decolorization
(D) Staining with Safranine
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Yellow fever is caused due to the human-to-human transmission by-

Amino acid that serves as a precursor for formation of the pigment responsible for human skin color is-

Match List I with List II:

List I	List II
(A) Shoulder	(I) Tarsals
(B) Thigh	(II) Carpals
(C) Wrist	(III) Humerus
(D) Ankle	(IV) Femur

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The propagation of action potential in myelinated nerve fiber is faster because of-

Calcitonin is produced by

The lymphoid stem cells in the bone marrow form
(A) Natural killer cells
(B) Platelets
(C) B lymphocytes
(D) Neutrophils
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The perforation between left and right atria of a fetal heart is known as

On the basis of type of body cavity, platyhelminthes can be categorized as

Match List I with List II

List I	List II
(A) Radiation hybrid mapping	(I) DNA can be cut into large fragments and circularized for use in chromosome walking
(B) Sequence tagged site (STS) mapping	(II) Useful for cloning of overlapping DNA fragments (restricted to about 200 kb)
(C) Chromosome jumping	(III) Fragment genome into large pieces and locate markers and genes
(D) Chromosome walking	(IV) Applicable to any part of DNA sequence if some sequence information is available

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A clotting disorder which is a sex-linked disease:

Which one of the following is a peat moss?

The basal portion of a mature ligule of Selaginella is called:

Vessels are present in:

Match List I with List II

LIST I (Transposons)	LIST II (Organism)
A. Pelement	I. Drosophila
B. LINE and SINE	II. Human
C. Ty element	III. Yeast
D. Tn element	IV. Bacteria

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The peptidyl transferase enzyme activity is located in the

Transcription factors that mediate the binding of RNA polymerase to DNA template are
A. TFIIA
B. TATA box
C. TFIIB
D. Small nuclear ribonucleoproteins
Choose the correct answer from the options given below: