The plant hormone which promotes ripening of fruits is
auxin
ethylene
gibberellin
cytokinin
Correct Answer :
B. ethylene
Related Questions
A plant cell is distinguishable from an animal cell by the presence of
nucleus
cell wall
chloroplasts
cell membrane
Who coined the term gene?
Mendel
Devries
Jacob and Monod
Johanson
The two German scientists who proposed the 'cell theory' were
Mendel and 'Darwin
Theodore Schwann and Matthias Schleiden
Virchow and Purkinje
porter and Palade
The theory that believes that the first living organism came from another planet is known as
Catastrophism
Special creation
Organic evolution
Cosmozoic theory
Scurvy is a disease caused by the deficiency of vitamin.
A
B
C
D
Which of the following terms is used in Botany?
Recession
Dumping
Barter System
Biennial
Food substances are substances by
hormones
enzymes
vitamins
zymogens
Kwashiorkar is characterised by
dermatitis, changes in hair pigments and retarded brain growth
excretion of creatine in excess
tyrosinosis and alcaptonuria
None of these
One of the following is often called the master gland. Which one is it?
Thymus
Islets of Langerhans
Pituitary
Thyroid
The golden age of Dinosaurs was
Palaezoic
Cenozoic
Mesozoic
Proterozoic
Cretinism is due to the disorder of the glands
Thymus
Parathyroid
Thyroid
Adrenal
The plant cells are surrounded rigidly by
plasmalemma
cell membrane
cell wall
plasma membrane
Which one of the following is both an exocrine and an endocrine gland?
Gastric glands
Pancreas
Salivary glands
Liver
Which one of the following is caused by the expression of a recessive gene present on sex chromosome?
Rheumatism
Nervous shock
Muscular dystrophy
Cerebral haemorrhage
The disease in which blood clotting does not take place is known as
Xerophthalmia
Haemopoeisis
Haemophilia
Haemoerythrin
Which one is a water-soluble vitamin?
A
C
D
E
The saliva contains an enzyme called
ptyalin
pepsin
trypsin
erepsin
Fibrinogen is present in
lymph
liver
blood plasma
pancreas
The specific gravity of blood is
lower than water
higher than water
same as water
many times that of water
Which among the following cows give maximum milk yields?
Jersey
Holstein
Red Sindhi
Sahiwal
The insect vector for the disease Leishmaniasis is
Tsetse fly
Culex
Phlebotomus
Anopheles
Plague is caused by
Bacteria
Virus
Fungus
Fleas
Whooping cough is caused by
Salmonella
Bacillus pertussis
Variola
Vibriona
The scientist who discovered the blood groups is
Landsteiner
TH Morgan
William Harvey
Darwin
Gases of Jupiter' are
Ammonia, Methane, Hydrogen
Sulphur, Urethane, Oxygen
Carbon, Phosphorus and Oxygen
Nitrogen, Hydrogen and Chlorine
Modern classification of the living world recognise ___________ kingdoms.
two
three
four
five
Which among the following is a communicable disease?
Beri Beri
Diabetes
Leucoderma
Dysentery
Which of the following diseases is not caused by a virus?
Cancer
Rabies
AlDS
Severe Acute Respiratory Syndrome (SARS)
Antibodies are formed in
lymph nodes
red bone marrow
spleen
liver
Phenylketonuria is an example of an inborn error of metabolism. Thins error refers to
hormonal overproduction
atrophy of endocrine glands
inherited lack of an enzyme
nondisjuction of chromosomes