AIIMS Zoology Questions

Virus free plants can be generated through-

Virus free plants can be formed by

Percentage of (G + C) is

Non-viable seeds are produced by

Assertion: Somaclonal variations produce slight differences in plant Reason: In bacteria, transcription and translation occurs in cytoplasm

Plasmid of which bacterium was first time used in recombinant DNA technology?

Assertion: Isolated protoplasts are used for somatic hybridisation Reason: Callus culture does not allow variation

Which of the following integrates Nervous and endocrine system

Choose the correct option

Identify the given diagram of tissue performing secretion and absorption

Identify the following diagram

Oxytocin and ADH are produced by hypothalamus and released from

Skeletal muscles are controlled by -

Choose the correct option for the labelling in the given diagram (A, B, C, D)

Assertion: SA node malfunctioning leads to disturbance of Heart rate Reason: SA node is the pacemaker of heart producing electric impulse for heart contraction

Activity of phagocytosis occurs through

Choose the correct statement for Periplaneta americana

Assertion: Type-I diabetes is caused by destruction of B cells of islets of Langerhans. Reason: Insulin can be taken as pills.

Animal of which phylum have hooks and suckers and are endoparasite on other animals

Assertion: Pituitary gland releases a hormone which is helpful in child birth. Reason: Pituitary gland releases vasopressin and anti diuretic hormone which helps in child birth.

Which of the following linkage is found in sucrose?

In Gene cloning:

Assertion: 70 percent of CO₂ formed from catabolism is trapped as bicarbonate in the RBCs at the tissue level. Reason: At tissue level, carbonic anhydrase in RBCs facilitates the formation of CO₂ and H₂O from bicarbonate.

Assertion: Pneumotaxiccentre is situated in Pons Reason: It can regulate the functioning of rhythm centre.

Assertion : $100\text{ ml}$ of blood delivers $5\text{ ml}$ $\text{O}_2$ to tissues in normal conditions Reason : One molecule of $\text{Hb}$ can bind with 4 molecules of $\text{O}_2$

Assertion: Interferons are effective against viruses. Reason: Proteins which can be synthesized only by genetic engineering are effective against viruses.

Assertion: Cockroach shows sexual dimorphisms. Reason: The female cockroach bears a pair of short thread like anal styles.

Assertion : Glycerides are important nutrients for body. Reason : Glycerides are hydrolysed into glycerol and fatty acids which are further absorbed in intestine by the formation of chylomicron.

Acrosome reaction in sperm is triggered by

You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with the following four types of test tubes. Which of these will you not use for the purpose?

Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause

Which of the following sets includes the bacterial disease?

The binding of antibodies to the antigens to produce a large insoluble complex is known as

Cattle fed with spoilt hay of sweet clover which contains dicumarol

How many sperms are formed from a secondary spermatocyte?

Grey crescent is the area

One common example of simple reflex is

Which one of the following is a matching pair?

When a man inhales air containing normal concentration of O₂ as well as CO he suffers from suffocation because

Enzymes, vitamins and hormones can be classified into a single category of biological chemicals because of all of these

Which one of the following is the correct statement regarding the particular psychotropic drug specified?

The cells of the quiescent centre are characterised by

Which of the following is not a function of the skeletal system?

In which of the following processes is the liver not directly involved?

Which of the following hormones is responsible for the regulation of calcium levels in the blood?

In transgenics, expression of transgene in target tissue is determined by

Assertion: Cephalization is advantageous to an animal. Reason: It improves the appearance of the animal.

Assertion: Competitive inhibitor is also called as substrate analogue. Reason: It resembles the enzymes in structure.

Assertion: Rhabdome is present in Palemon. Reason: Rhabdome has an important role in digestion.

Assertion: Pituitary is attached to hypothalamus by a vein. Reason: This attachment is done through a hypophysial portal vein.