Zoology - Online Test
Q1. In India, medical termination of pregnancy was legalized in ------.
Answer : Option A
Explaination / Solution:
MTP (Medical termination of pregnancy) was legalized in 1971 in India with exception of female feticides after sex determination using Ultrasonography or other means.
Q2. In frog, during aestivation and hibernation gaseous exchange takes place through
Answer : Option C
Explaination / Solution:
As the frog becomes inactive during aestivation and hibernation, gaseous exchange does not take place through lungs. It takes place through skin.
Q3. The name virus was given by
Answer : Option B
Explaination / Solution:
The name virus that means venom or poisonous fluid was given by Pasteur. They are inert outside specific host and living inside the host cell. Viruses are obligate parasites.
Q4. Negative acceleration phase is caused due to
Answer : Option B
Explaination / Solution:
Negative acceleration phase is caused due to increase in environmental resistance. An environment have limited amount of resources after reaching climax phase negative acceleration occurs.
Q5. Bacteria responsible for chronic gastritis is :
Answer : Option D
Explaination / Solution:
Chronic gastritis involves swelling or inflammation of the stomach lining. Helicobacter pylori colonizes the stomach and induces chronic gastritis, a long-lasting inflammation of the stomach.
Q6. Antigen binding site in an antibody is found between
Answer : Option C
Explaination / Solution:
The antigen-binding (Fab) fragment is a region on an antibody that binds to antigens. It is composed of one constant and one variable domain of each of the heavy and the light chain.
Q7. The site for the light reactions is
Answer : Option A
Explaination / Solution:
In plant cells, the chloroplasts are responsible for trapping light energy essential for photosynthesis. The grana, in the plastid, is the site of light reactions.
Q8. Signaling between cells usually results in the activation of protein
Answer : Option B
Explaination / Solution:
Signaling between cells for transcription of m-RNA from DNA is controlled by an activation of protein kinases. It is present in cytoplasm of cells.
Q9. Gene banks are part of
Answer : Option C
Explaination / Solution:
Gene banks are part of ex situ conservation of plants or plant parts. In ex situ conservation, plants parts are maintained in laboratory condition. In in situ conservation, plants are kept in natural condition with protection.
Q10.
Most of the alien species do not establish in new areas but some do likely because:
i. they are released from limitations imposed by their native predators and competitors
ii. they might outcompete the native species
Answer : Option C
Explaination / Solution:
Invasive Non- Native Species are accidental or intentional introduction of exotic species to new areas. species that are non-native to a particular area can sometimes spread very quickly. Most do not establish or expand, but some do - likely because they are " released" from limitations imposed by their native predators, parasites, and competitors. in todays globalizing world, invasive species have become perhaps the second- worst threat to native biota. They might outcompete with native species.
