List of top Zoology Questions

Assertion (A): Dengue fever is caused due to failure of clot reaction.
Reason (R): The patient of dengue may require transfusion of blood platelets.
Identify the correct option
Statement – I : Alzheimer’s disease is most common in people above 65 years of age.
Statement – II : It is caused by loss of neurons and loss of memory.
Erythropoietin hormone is produced by
Identify the non fibrous joints
Assertion (A): The egestion of faeces to outside through anus is a voluntary process.
Reason (R): The undigested wastes in rectum initiates neural reflex causing an urge for its removal.
Hemozoin is
The larval stages of the parasite that causes gigantism in snail is
Assertion (A): Monkey is the reservoir host of malarial parasite.
Reason (R): Malaria is transmitted by monkey bite.
Identify the correct option
Statement – I: The contraction of internal intercostals muscles and lateral abdominal muscles help in forced expiration.
Statement – II: The contraction of phrenic muscles increases the volume of the thoracic cavity in antero-posterior axis.
The production of the flowers in response to light hours in a day is
Identify the correct option
Statement – I: Some insects add glycerol to their blood as antifreezing agent during winter.
Statement – II: Insects are temperature regulators.
Blocks of muscles found in cephalochordata are
Select the set of characters equally shared by reptiles and aves among the following
Identify the functions of diencephalon in frog’s brain among the following
The structure formed as a result of amphimixis is
The structures of the parent that disappear during binary fission of Euglena and develop afresh in daughter euglenae
Identify the fungal disease among the following
Bilateral symmetry is observed in
A. Asterias
B. Bipinnaria
C. Adult gastropods
D. Auricularia Larva
E. Brachiolaria Larva
Choose the incorrect statements regarding Hemichordata
A. Stomochord extends into proboscis
B. They have ventral heart with closed type of circulatory system
C. Development includes Tornaria larva
D. Cloacal respiration takes place by respiratory trees.
Choose the common characters shown by the animals of classes Scyphozoa and Anthozoa
A. Mesoglea is non-cellular with amoebocytes
B. Cnidocytes occur in ectoderm and endoderm
C. Germ cells are derived from endoderm
D. Coelenteron is undivided
In eucoelomates the mesoderm comes into contact with endoderm of alimentary canal to form gizzard and stomach. This is referred to as
Assertion (A): Pseudo stratified epithelium gives the false appearance of stratified epithelium.
Reason (R): Pseudo stratified epithelium is made up of more than one layer of cells to provide protection against stress.
A population has 600 individuals, 150 of genotype AA, 300 of genotype Aa and 150 of genotype aa. What is the frequency of allele A ?
In the course of evolution, first horses appeared in which period ?
Which of the following IUCN category is assigned when a species faces an extremely high or very high risk of extinction in the wild in immediate or near future?