List of top Zoology Questions

Study the following and identify the incorrect combinations: 


 

Assertion [A]: Nematodes are pseudocoelomates. 
Reason [R]: Perivisceral space is filled with parenchyma derived from mesoderm. 
 

Choose the incorrect statements regarding Siphonopoda:
I. They show open type of circulatory system.
II. Brain is enclosed in cartilaginous cranium.
III. Some possess ink gland.
IV. Development includes trochophore larva.
In an ECG, a prolonged Q-T interval indicates:
The practice of mating animals within the same breed, but having no common ancestor on either side of the pedigree for 4 - 6 generations is known as:
Select the correct statement:
The driving force of evolution is:
Holandric genes are located in:
Identify the incorrect pair regarding sex determination systems:
If one parent has AB blood group and the other parent has A blood group (homozygous), these blood groups are not expected in their children:
Identify the incorrect pair.
Identify the incorrect pairs among the following:
Saheli is a:

Choose the incorrect combination among the following: 


 

Class-I MHC molecules are associated with:
Identify the incorrect statements regarding the immune system.
I. Immunity developed by individual due to vaccination is artificial passive acquired immunity.
II. Interleukins are involved in differentiation of immune cells.
III. Large granular lymphocytes destroy infected cell in an antibody dependent manner.
IV. Mature lymphocytes transform into functional lymphocytes in Peyer's patches.

Statement I: Epinephrine attaches to liver cell membrane receptors and activates adenylate cyclase. 
Statement II: The cyclic-AMP activates phosphorylation and converts glycogen to glucose.

Identify the correct statements regarding hormones.

Arrange the following in sequence the events of mechanism of vision: 

Identify triangular bones among the following:
A. Vomer
B. Coccyx
C. Scapula
D. Hyoid
E. Palatine
Assertion (A): Urine is hypertonic in the descending limb of loop of Henle, while urine is hypotonic in the ascending limb.
Reason (R): Ascending limb is impermeable to Na+, whereas descending limb is impermeable to water.
During blood clotting, in extrinsic pathway, thromboplastin activates:
These factors are favourable for the formation of oxyhaemoglobin:
I. High \( {pCO}_2 \)
II. High \( {pO}_2 \)
III. Lesser H\(^+\) concentration and lower temperature
IV. Higher H\(^+\) concentration and higher temperature
In humans, the teeth that appear very late, usually at the age of 21 years are:
Lakes that show overturns twice a year are called: