AIPMT 2004

In a longitudinal section of a root, starting from
the tip upward, the four zones occur in the
following order :-

One of the following is a very unique feature of the mammalian body

The animals with bilateral symmetry in young stage, and radial pentamerous symmetry in the adult stage, belong to the Phylum

When a fresh-water protozoan possessing a contractile vacuole, is placed in a glass containing marrine water, the vacuole will

In Arthropoda, hend and thorax are often used to form cephalothorax, but in which one of the following classes, is the body divided into head thorax and abdomen?

Presence of gills in the tadpole of frog indicates that

Uricotelism is found in

In your opinion, which is the most effective way
to conserve the plant diversity of an area ?

Phenetic classification of organisms is based on

During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and

Which of the following statements is not true for retroviruses?

Viruses that infect bacteria multiply and cause their lysis, are called

Lichens are well known combination of an alga and a fungus where fungus has

A free living nitrogen-fixing cyanobacterium which can also symbiotic association with the water ferm Azolla is

Which one of the following enzymes, is copper necessarily associated as an activator?

DNA fingerprinting refers to :-

The Ti plasmid is often used for making
transgenic plants. This plasmid is found in

ELISA is used to detect viruses, wherethe key reagent is :-

In transgenics expression of transgene in target
tissue is determined by :-

Restriction endonucleases :-

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 you will not use for the purpose.

Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?
The patient has been inhaling polluted air containing unusually high content of

When CO2 concentration in blood increases breathing becomes

Which one of the following precedes reformation of the nuclear envelope during M phase of the cell cycle?

In the somatic cell cycle

If you are provided with root-tips of onion in your class and are asked to count the chromosomes, which of the following stages can you most conveniently look into?

In chloroplasts, chlorophyll is present in the :-

The telomeres of eukaryotic chromosomes
consist of short sequences of

Which one of the following hormones is modified amino acid?

Chemically hormones are

Which one of the following pairs correctly matches a hormone with a disease resulting from its deficiency?

Duodenum has characteristics Brunner's gland which secrete two hormones called

Which one of the following pairs is not correctly matched?

The richest sources of vitamin B12 are

Which of the following is expected to have the highest value (gm/m2/yr) in a grassland
ecosystem ?

An ecosystem which can be easily damaged but
can recover after some time if damaging effect
stops will be having -

Common indicator organism of water pollution
is :-

In 1984, the Bhopal gas tragedy took place
because methyl isocyanate :-

Lead concentration in blood is considered
alarming if it is -

Diversification in plant life appeared

What kind of evidence suggested that man is
more closely related with chimpanzee than with
other hominoid apes ?

Which one of the following is living fossil ?

Age of fossils in the past was generally
determined by radio-carbon method and other
methods involving radioactive elements found in
the rocks. More precise methods, which were
used recently and led to the revision of the
evolutionary perio...

According to oparin, which one of the following
was not present in the primitive atmosphere of
the earth ?

Which one of the following is not correctly
matched ?

Ovulation in the human female normally takes
place during the menstrual cycle -

Which of the following hormones is not a
secretion product of human placenta -

A major component of gobar gas is

Dough kept overnight in warm weather
becomes soft and spongy because of :-

Which one of the following pairs is not correctly matched ?