Gause's principle of competitive exclusion
states that :
(1) More abundant species will exclude the less
abundant species through competition.
(2) Competition for the same resources excludes
species having different food preferences.
(3) No two species can occupy the same niche
indefinitely for the same limiting resources.
(4) Larger organisms exclude smaller ones through
competition.

The two polypeptides of human insulin are linked
together by :-
(1) Hydrogen bonds
(2) Phosphodiester bond
(3) Covalent bond
(4) Disulphide bridges

The coconut water from tender coconut represents:-
(1) Endocarp
(2) Fleshy mesocarp
(3) Free nuclear proembryo
(4) Free nuclear endosperm

Which of the following statements is wrong for
viroids?
(1) They lack a protein coat
(2) They are smaller than viruses
(3) They cause infections
(4) Their RNA is of high molecular weight

Which of the following featrues is not present in the
Phylum - Arthropoda ?
(1) Chitinous exoskeleton
(2) Metameric segmentation
(3) Parapodia
(4) Jointed appendages

Which of the following most appropriately describes
haemophilia ?
(1) Recessive gene disorder
(2) X - linked recessive gene disorder
(3) Chromosomal disorder
(4) Dominant gene disorder

Emerson's enhancement effect and Red drop have
been instrumental in the discovery of :-
(1) Photophosphorylation and non-cyclic electron
transport
(2) Two photosystems operating simultaneously
(3) Photophosphorylation and cyclic electron
transport
(4) Oxidative phosphorylation

In which of the fo llowing, all three are
macronutrients?
(1) Boron, zinc, manganese
(2) Iron, copper, molybdenum
(3) Molybdenum, magnesium, manganese
(4) Nitrogen, nickel, phosphorus

Name the chronic respiratory disorder caused
mainly by cigarette smoking :-
(1) Emphysema
(2) Asthma
(3) Respiratory acidosis
(4) Respiratory alkalosis

A system of rotating crops with legume or grass
pasture to improve soil structure and fertility is
called:-
(1) Ley farming
(2) Contour farming
(3) Strip farming
(4) Shifting agriculture

Mitochondria and chloroplast are :-
a) semi-autonomous organelles
(b) formed by division of pre-existing organelles and
they contain DNA but lack protein synthesizing
machinery
Which one of the following options is correct ?
(1) Both (a) and (b) are correct
(2) (b) is true but (a) is false
(3) (a) is true but (b) is false
(4) Both (a) and (b) are false

In context of Amniocentesis, which of the following
statement is incorrect ?
(1) It is usually done when a woman is between
14-16 weeks pregnant.
(2) It is used for prenatal sex determination
(3) It can be used for detection of Down syndrome
(4) It can be used for detection of Cleft palate

In a chloroplast the highest number of protons are
found in :-
(1) Stroma
(2) Lumen of thylakoids
(3) Inter membrane space
(4) Antennae complex

Photosensitive compound in human eye is made up
of :-
(1) Guanosine and Retinol
(2) Opsin and Retinal
(3) Opsin and Retinol
(4) Transducin and Retinene