Zoology - Online Test
Q1. Axial skeleton consists of
Answer : Option A
Explaination / Solution:
The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 80 bones and is composed of six parts; the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column.
Q2. The first transgenic cow was
Answer : Option C
Explaination / Solution:
In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk at 2.4 grams per litre. This transgenic milk is a more nutritionally balanced product than natural bovine milk and could be given to babies or the elderly with special nutritional or digestive needs.Rosie’s milk contains the human gene alpha-lactalbumin.
Q3. Which one of the following correctly matched STD with pathogen
Answer : Option C
Explaination / Solution:
Syphilis is caused by bacteria Treponemapallidum. AIDS are caused by HIV, Gonorrhea is by bacterium Neisseria gonorroeae. Uretheritis is not a sexually transmitted disease.
Q4. Myelin sheath is derived from
Answer : Option D
Explaination / Solution:
The outer layer of axon of nerve cells is called myelin sheath. Myelin sheath is derived from Schwann cells.
Q5. A distinction between unicellular and multicellular is not possible in
Answer : Option B
Explaination / Solution:
Algae grouped together the unicellular organisms and the multicellular ones.
Q6. Age groups among human population includes all except
Answer : Option C
Explaination / Solution:
Age groups among human population includes reproductive, pre-reprouctive and post reproductive growth. It do not includes embryonic phase growth.
Q7. The secretions released into small intestine are
Answer : Option D
Explaination / Solution:
The bile, pancreatic juice and the intestinal juice are the secretions released into the small intestine.
Q8. AIDS is caused by Human immuno deficiency virus (HIV) which is a member of group of virus called
Answer : Option B
Explaination / Solution:
Retrovirus, any of a group of viruses that belong to the family Retroviridae and that characteristically carry their genetic blueprint in the form of ribonucleic acid (RNA). Retroviruses are named for an enzyme known as reverse transcriptase, which was discovered independently in 1971 by American virologists Howard Temin and David Baltimore.
HIV virus belongs to this group as its genetic material is also RNA.
Q9. The vestibular apparatus is composed of
Answer : Option B
Explaination / Solution:
The vestibular apparatus is composed of three semicircular canals and the otolith organ consisting of the saccule and utricle.
Q10. The plasma membrane consists mainly of
Answer : Option D
Explaination / Solution:
The plasma membrane is composed of lipids that are arranged in a bilayer. Also, the lipids are arranged within the membrane with the polar head towards the outer sides and the hydrophobic tails towards the inner part.
The membrane proteins can be classified as integral or peripheral. Peripheral proteins lie on the surface.
