A person with a blood group ____ is considered to be an universal donor.
A Positive
AB Positive
AB Negative
O Positive
Correct Answer :
D. O Positive
Related Questions
The saliva contains an enzyme called
ptyalin
pepsin
trypsin
erepsin
Lizards, snakes, crocodiles and turtles belong to the class
Aves
Reptilia
Mammalia
Amphibia
Turner's syndrome is a disease caused by
bacteria
virus
fungus
chromosomal imbalance
When a movement of a plant organ is stimulated by contact with an object, it is termed
heliotropism
geotropism
haptotropism
gardening
Which one of the following seeds can benefit a patient of diabetes mellitus by normalising his blood sugar level?
Coriander seeds
Fenugreek seeds
Cumin seeds
Mustard seeds
The aphotic zone means that light is
always present
present during day
always absent
present during night
Organisms which synthesise their own food are called
autotrophs
heterotrophs
saprotrophs
auxotrophs
Nephantis is popularly called
coconut caterpillar
brown plant hopper
tobacco caterpillar
pulse beetle
Chromosome theory of inheritance was propounded by
Sutton and Boveri
Mendel
Muller
Beadle and Tatum
Which organelle in the cell, other than nucleus, contains DNA?
Centriole
Golgi apparatus
Lysosome
Mitochondrion
The larva of the housefly is called
maggot
caterpillar
grub
wriggler
Chemical substances that called have effect on growth of plants are called
enzymes
catalysts
hormones
pesticides
The latest drug for cancer is obtained from
Strychnos nuxvomica
Vinca rosea
Atropa belladona
Phyllanthus niruri
Blood of cockroach is
red
bluish
greenish
colourless
The first sign of life made its appearance on the earth about
1 million years ago
500 million years ago
1 billion or 1000 million years ago
3 billion years ago
Biological control is to check growth of
plants
animals
weeds
one pest by another
The juice from the leaves of ________ is used for the treatment of diarrhoea, cholera and dysentery.
Caeselpinea
Bryophyllum
Centella
None of the above
Louis Pasteur developed the vaccine for ______ for the first time.
smallpox
cowpox
tetanus
chicken cholera
The counting of RBC's can be performed by
Haemocytometer
Haemoglobinometer
Clinostat
Thermometer
The development of new organs is termed
Parthenogenesis
Morphogenesis
Histogenesis
Paedogenesis
Which among the following is a Cast growing tree?
Teak
Eucalyptus
Banyan
Coconut
The tallest tree in the world Sequoia™ is found in
UK
USA
former USSR
China
The cellular and molecular control o( programmed cell death is known as
Apoptosis
Ageing
Degeneration
Necrosis
Which of the following organelles is known as the 'power House' of the cell?
Golgi Bodies
Ribosomes
Mitochondria
None of these
The specific gravity of blood is
lower than water
higher than water
same as water
many times that of water
Polyploid wheat does not normally show an increase in
size
vigour
length of the life cycle
resistance to desease
The mouth of a river opening into the sea is termed as
shore line
littoral zone
continental shelf
estuary
Blood plasma from which fibrinogen is removed is known as
serum
blood concentrate
lymph
antibody component
Human blood is oxygenated and purified in the
heart
lungs
liver
kidneys
Which one of the following animals stores water in the intestine?
Moloch
Camel
Zebra
Uromastix