RRB ALP - General Science - Biology MCQs

  • 1. Plants which are adapted to grow in soils containing high concentration of salt are known as:
   A.) Thallophytes
   B.) Mesophytes
   C.) Halophytes
   D.) Xerophytes

Answer: Option 'C'

Halophytes

  • 2. Bowman’s Capsule’ works as a part of the functional unit of which among the following human physiological system?
   A.) Reproductive System
   B.) Excretory System
   C.) Circulatory System
   D.) Respiratory System

Answer: Option 'B'

Excretory System

  • 3. Which among the following have a ‘mixed heart’ ,that is the heart in which the oxygenated and the deoxygenated blood is mixed?
   A.) Nematodes
   B.) Fishes
   C.) Reptiles
   D.) Birds

Answer: Option 'C'

Reptiles and Amphibians have a mixed heart.

  • 4. The bacterium ‘Escherichia coli’ is found mainly in:
   A.) Paddy fields for nitrogen fixation
   B.) Human Intestine
   C.) Pteridophytes
   D.) Root Nodules of leguminous plants

Answer: Option 'B'

Human Intestine

  • 5. Saffron’ is obtained from which among the following parts of the plant?
   A.) Pollen
   B.) Stigma
   C.) Stamen
   D.) Anther

Answer: Option 'B'

Stigma

  • 6. Human Papilloma Virus is related to which of the following diseases?
   A.) Leukemia
   B.) Cervical Cancer
   C.) Prostate Cancer
   D.) Lymphatic Filariasis

Answer: Option 'B'

Cervical Cancer

  • 7. Which among the following is not a ‘heriditary’ disease?
   A.) Haemophilia
   B.) Thalessemia
   C.) Colour-Blindness
   D.) Leukemia

Answer: Option 'D'

Leukemia

  • 8. Pest-resistant cotton commonly known as ‘Bt-Cotton’ is genetically engineered by inserting a gene from a:
   A.) Protist
   B.) Bacterium
   C.) Virus
   D.) Microalgae

Answer: Option 'B'

Bacterium

  • 9. Anemophily’ is pollination by :
   A.) Bats
   B.) Wind
   C.) Birds
   D.) Ants

Answer: Option 'B'

Wind

  • 10. The nutritional supplements Spirulina, Chorella and the Vitamin-C supplement, Dunaliella are actually :
   A.) Bryophytes
   B.) Algae
   C.) Probiotics
   D.) Lichens

Answer: Option 'B'

Algae