AIPMT-MAIN Zoology Questions

Which one of the following is incorrect about the characteristics of protobionts (coacervates and microspheres) as envisaged in the abiogenic origin of life?

Which one of the following is an amine hormone?

Thermococcus, Methanococcus and Methanobacterium exemplify

Which one of the following is heterosporous?

In which one of the following male and female gametophytes do not have free living independent existence?

Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?

Which one of the following in birds, indicates their reptilian ancestry?

Ascaris is characterized by

Which one of the following is not a characteristic of phylum Annelida?

In the light of recent classification of living organisms into three domains of life (bacteria, archaea and eukarya), which one of the following statements is true about archaea?

Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?

What is true about the isolated small tribal populations?

Which one of the following scientist's name is correctly matched with the theory put forth by him?

Darwin's Finches are an excellent example of

Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?

Which type of white blood cells are concerned with the release of histamine and the natural anticoagulant heparin?

Which one of the following is the true description about an animal concerned?

Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product?

What is vital capacity of our lungs?

Which one of the following is the correct difference between Rod Cells and Cone Cells of our retina?

Which one of the following items gives its correct total number?

Given below is a diagrammatic cross section of a single loop of human cochlea. Which one of the following options correctly represents the names of three different parts?

Given below are four methods (A - D) and their modes of action (a - d) in achieving contraception. Select their correct matching from the four options that follow.

What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?

During the propagation of a nerve impulse, the action potential results from the movement of

The blood calcium level is lowered by the deficiency of

The most active phagocytic white blood cells are

Earthworms have no skeleton but during burrowing, the anterior end becomes turgid and acts as a hydraulic skeleton. It is due to

In humans, blood passes from the post caval to the diastolic right atrium of heart due to

In humans, at the end of the first meiotic division, the male germ cells differentiate into the

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus?

Which one of the following statements is incorrect about menstruation?

The haemoglobin of a human foetus

Consider the statements given below regarding contraception and answer as directed thereafter (a) Medical Termination of Pregnancy (MTP) during first trimester is generally safe (b) Generally chances of conception are nil until mother breast-feeds the infant upto two years (c) Intrauterine devices like copper-T are effective contraceptives (d) Contraception pills may be taken upto one week after coitus to prevent conception Which two of the above statements are correct?

In human adult females oxytocin

Which one of the following is the correct percentage of the two (out of the total of 4) greenhouse gases that contribute to the total global warming?

Consider the following statements concerning food chains (a) Removal of 80% tigers from an area resulted in greatly increased growth of vegetation (b) Removal of most of the carnivores resulted in an increased population of deers (c) The length of food chains is generally limited to 3-4 trophic levels due to energy loss (d) The length of food chains may vary from 2 to 8 trophic levels. Which two of the above statements are correct?

A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this (a) Lots of urea and phosphate fertilizer were used in the crops in the vicinity (b) The area was sprayed with DDT by an aircraft (c) The lake water turned green and stinky (d) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis Which two of the above were the main causes of fish mortality in the lake?

A transgenic food crop which may help in solving the problem of night blindness in developing countries is

Gel electrophoresis is used for

To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?

Match the disease in Column I with the appropriate items (pathogen/prevention/treatment) in Column II

Consider the following statements about biomedical technologies (a) During open heart surgery blood is circulated in the heart-lung machine (b) Blockage in coronary arteries is removed by angiography (c) Computerised Axial Tomography (CAT) shows detailed internal structure as seen in a section of body (d) X⁻ray provides clear and detailed images or organs like prostate glands and lungs Which two of the above statements are correct?

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

Main objective of production/use of herbicide resistant GM crops is to

Human insulin is being commercially produced from a transgenic species of

Cornea transplant in humans is almost never rejected. This is because

Which of the following pairs of organs includes only the endocrine glands?

What is antisense technology?