STANDARD Zoology Questions

In man, the urea is mainly produced in

The efferent process of neuron is known as

Abiogenesis means

Match the items given in column I with those in column II and select the correct option given below.

During electrophoresis, DNA fragments move towards the

Choose the wrong statement regarding AIDS

Macrophages and Leucocyte exhibit :-

In man and mammals, air passes from outside into the lungs through

Improved programmes covering wider reproduction related areas are currently in operation under the popular name _______ programmes

Which of the following group of animals reproduces only by sexual means?

The transfer of sperms into female genital tract is called as ________.

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): With the help of several ommatidia, a cockroach can perceive several images of an object, i.e., mosaic vision. Reason (R): Mosaic vision gives more sensitivity but less resolution. In the light of the above statements, choose the most appropriate answer from the option given below:

Receptors for protein hormones are located

Coelom is cavity between alimentary canal and body wall enclosed by

Aquatic reptiles are

Which of the following is true about RNAi process?

The term 'Health' is defined in many ways. The most accurate definition of the health would be

Which is a common passage in swallowing food and breathing

Serum differs from blood in

The hind brain consists of

About how long ago was the earth formed

The 8ᵗʰ and 9ᵗʰ ribs are known as false ribs because their external portions are attached to

Assertion: Frogs undergo aestivation & hibernation. Reason: Frogs take shelter in deep burrows to protect themselves from extreme heat & cold.

Hormones may be

When an organ is transplanted and is rejected by the body, the lymphocytes are produced by

Which of the following is an accessory reproductive gland in male mammals?

Which cells in the testes secrete testosterone, the male sex hormone?

What is true for primitive atmosphere?

Aquatic annelids (like Nereis) possess lateral appendages called ______________ which help in swimming.

Which of the following correctly state as it happens in the common cockroach?

How many recombinant products are presently being marketed in India?

Which one of the following is not a second messenger in hormone action

Which of the following are the type of nerve fibres of PNS

There is a membrane covering the lungs, called

The haemoglobin content per 100 mL of blood of a normal healthy human adult is

Many freshwater animals cannot live for long in sea water and vice versa because of the ________

A typical fat molecule is made up of

The “family planning” were initiated in ________.

T-cells are lymphocytes which produce the cellular immunity. These are developed from

The opening at the base of the skull for the spinal cord is called

Maintenance of internal favourable conditions, despite changes in external environment is

The main difference between Gram positive and Gram negative bacteria lies in the composition of

Which one of the following statement is incorrect?

The number of vertebrae present in cervical, thoracic, lumbar, sacral and coccyx regions respectively are

Uridine, present only in RNA is a

Statutory raising marriageable age of female to _____ and that of males ______ giving incentives to small family could tackle population explosion

Humoral immunity is due to

Nucleotides are building blocks of nucleic acids. Each nucleotide is a composite molecule formed by

The structure which prevents the entry of food into the respiratory tract is

Seminal plasma in humans is rich in