List of top Zoology Questions

Mild tertian malaria is caused by

Assertion (A): Life cycle of ectoparasites is more complex with many developmental stages.
Reason (R): Developmental stages of endoparasites have better chances to reach definitive host.

Among the following, nocturnal periodicity is exhibited by

In microtubules, the peripheral doublets are interconnected by linkers called

Assertion (A): Mary Mallon was nicknamed as 'Typhoid Mary'.
Reason (R): Mary Mallon spread typhoid for several years through the food she prepared.

The gene that is believed to play a key role in human language expression is

The spermathecae in earthworm are present in

Choose the correct combination among the following

• A. Bivalvia - Radula - Rasping organ
• B. Scaphopoda - Captacula - Capture of food
• C. Pelecypoda - Crystalline style - Digestion of starch
• D. Cephalopoda - Osphradium - Water purity testing

Assertion (A): Pneumaticity of bones is the unique feature of reptiles.
Reason (R): Air sacs associated with lungs of birds facilitate continuous oxygenation of blood.

Choose the incorrect statements regarding Hirudinea

• A. Male reproductive system has cirrus.
• B. They are exclusively marine and tubicolous.
• C. Fertilization is external and development is direct.
• D. Clitellum is conspicuous during the breeding season only.

Hyaline cartilage occurs in

• A. Sternal part of the ribs.
• B. Pubic Symphysis.
• C. Epiphyseal plate.
• D. Vocal chords.
• E. Epiglottis.
• F. Endoskeleton of cyclostomes.

Assertion (A): Kidneys of vertebrates are called retroperitoneal organs.
Reason (R): They are covered by parietal peritoneum only on their ventral side.

Assertion (A): Mast cells secrete serotonin.
Reason (R): Vasodilators cause inflammation in response to infection.

Rats belong to the class

Choose the incorrect pair among the following

• A. Biosphere reserve - Indo Burma region
• B. Aravalli Hills - Rajasthan and Gujarat
• C. Koringa sanctuary - Uttarakhand
• D. Biodiversity hotspot - Himalayan region

Choose the incorrect statements regarding Hardy–Weinberg equilibrium
A. There should be no migration
B. There should be differential reproductive success
C. Population should be large without random mating
D. Mutations should not occur

Arrange the following in sequence in relation to the origin of living organisms
A. Chemo-autotrophs
B. Oxygenic photoautotrophs
C. Anaerobic heterotrophs
D. Anoxygenic photo-autotrophs

Identify the correct option
Statement – I (SI): Hypo secretion of cortisol results in low blood pressure.
Statement – II (SII): Elevated levels of cortisol leads to hyperglycemia.