AIPMT 2008

Which one of the following statements is
incorrect about menstruation?

Which one of the following proved effective for
biological control of nematodal disese in plants?

Trichoderma harzianum has proved a useful
microorganism for:

Nitrogen fixation in root nodules of Alnus is
brought about by:

Polysome is formed by

Which one of the following pairs of codons is
correctly matched with their function or the
signal for the particular amino acid ?

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

In the DNA molecule:

Dry indehiscent single-seeded fruit formed from bicarpellary syncarpous inferior ovary is

Endosperm is consumed by developing embryo in the sead of

The fruit is chambered, developed from inferior ovary and has seeds with succulent testa in

The fleshy receptacle of syconus of fig encloses a number of

Replum is present in the ovary of flower of

Which one of the following is the correct difference between rod cells and cone cells of our retina?

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?

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

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

Consider the following four statements (1-4) about
certain desert animals such as kangaroo-rat.
(i) They have dark colour and high rate of
reproduction and excrete solid urine
(ii) They do not drink water, breathe at a slow
rate to conser...

Quercus species are the dominant component in:

In leaves of C4 plants malic acid synthesis during CO2 fixation occurs in

The C4 plants are photosynthetically more efficient than C3 plants because

Electrons from excited chlorophyll molecule of photosystem II are accepted first by

Senescence as an active developmental cellular process in growth and functioning of a flowering plant, is indicated in

Importance of day length in flowering of plants was first shown in

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

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.

Which one of the following is heterosporous?

Which one of the following conditions in
humans is correctly matched with its
chromosomal abnormality/linkage?

Haploids are more suitable for mutation studies
than the diploids. This is because:

Given below are four methods (A-D) and their
modes of action (1-4) in achieving
contraception. Select their correct matching
from the four options that follow:

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Consider the statements given below regarding
contraception and answer as directed thereafter:
(i) Medical Termination of Pregnancy (MTP)
during first trimester is generally safe
(ii) Generally chances of conception are nil
until mother b...

The energy-releasing metabolic process in which substrate is oxidised without an external electron acceptor is called

The chemiosmotic coupling hypothesis of oxidative phosphorylation proposes that adenosine triphosphate (ATP) is formed because

Which one of the following pairs of plant structures has haploid number of chromosomes ?

What does the filiform apparatus do at the entrance into ovule?

Which one of the following is resistant to enzyme action?

Unisexuality of flowers prevents

Which one of the following is linked to the
discovery of Bordeaux mixture as a popular
fungicide ?

Consider the following four measures (1-4) that
could be taken to successfully grow chickpea in
an area where bacterial blight disease is
common:
(i) Spray with Bordeaux mixture
(ii) Control of the insect vector of the disease
pathogen
...

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

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

The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of

A strong base can abstract an \(\alpha\)-hydrogen from

The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of

Acetophenone when reacted with a base, C2H5ONa,   yields a stable compound which has the structure

Which of the following is an amine hormone?

In DNA, the complimentary bases are

The correct order of increasing bond angles in the following triatomic species is

Four diatomic species are listed below. Identify the correct order in which the bond order is increasing in them

The value of equilibrium constant of the reaction
HI(g) \(\rightleftharpoons\) \({1 \over 2}\)H2(g) + \({1 \over 2}\)I2(g)
is 8.0. The The equilibrium constant of the reaction
H2(g) + I2(g) \(\rightleftharpoons\) 2HI(g) will be