Biology Mcqs

Which of the following is an RNA virus:

• (A)  Influenza virus
• (B)  Herpes virus
• (C)  HBV
• (D)  Pox virus

Answer

Submitted By :Ali Uppal

In the Lysogenic cycle the DNA of the bacteriophage__________________?

• (A)  Joins the bacterial chromosomes
• (B)  Attaches to the inner surface of the host membrane
• (C)  Is immediately degraded when enters the host
• (D)  Goes directly to host ribosomes for translation

Answer

Submitted By :Ali Uppal

Tobacco mosaic virus is__________?

• (A)  Spherical
• (B)  Rod Shaped
• (C)  Tadpole like
• (D)  Hexagonal

Answer

Submitted By :Ali Uppal

In life cycle of bacteriophage which step occur after attachment of prophage with the receptor site of the bacterial cell wall_____________?

• (A)  Absorption
• (B)  Multiplication
• (C)  Lysogeny
• (D)  Penetration

Answer

Submitted By :Ali Uppal

Which of the following disease results in Paralysis due to viral attack on C.N.S:

• (A)  Measles
• (B)  Herpes simplex
• (C)  Hepatitis
• (D)  Polio

Answer

Submitted By :Ali Uppal

In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called______________?

• (A)  Lysis
• (B)  Lysogeny
• (C)  Induction
• (D)  Adsorption

Answer

Submitted By :Ali Uppal

Loss of appetite due to the fear of becoming obese is____________?

• (A)  Anorexia nervosa
• (B)  Bulimia nervosa
• (C)  Piles
• (D)  Dyspepsia

Answer

Submitted By :Ali Uppal

Autotrophic organisms can exist in an exclusively ________________ environment?

• (A)  Organic
• (B)  Inorganic
• (C)  Wet
• (D)  Terrestrial

Answer

Submitted By :Ali Uppal

An illness which largely affects girls usually just after the onset of puberty.

• (A)  Bulimia nervosa
• (B)  Obesity
• (C)  Anorexia nervosa
• (D)  None of these

Answer

Submitted By :Ali Uppal

Puccinia is a parasitic___________?

• (A)  Plant
• (B)  Fungus
• (C)  Animal
• (D)  Algae

Answer

Submitted By :Ali Uppal