STANDARD Zoology Questions

In man, the urea is mainly produced in

During electrophoresis, DNA fragments move towards the

Macrophages and Leucocyte exhibit :-

The efferent process of neuron is known as

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

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

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:

Choose the wrong statement regarding AIDS

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

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?

Receptors for protein hormones are located

Abiogenesis means

Which of the following is true about RNAi process?

Which is a common passage in swallowing food and breathing

Aquatic reptiles are

Coelom is cavity between alimentary canal and body wall enclosed by

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

About how long ago was the earth formed

Hormones may be

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

The hind brain consists of

Serum differs from blood in

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.

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

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

How many recombinant products are presently being marketed in India?

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

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

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

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

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

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

There is a membrane covering the lungs, called

The “family planning” were initiated in ________.

A typical fat molecule is made up of

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

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

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

Which one of the following statement is incorrect?

What is true for primitive atmosphere?

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

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

Which of the following is not used as a bioweapon?

Which one of the following organisms is not an example of eukaryotic cells

Humoral immunity is due to

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

Which among the following statements is incorrect?

True coelom or body cavity occurs in