Antibodies are formed in
lymph nodes
red bone marrow
spleen
liver
Correct Answer :
B. red bone marrow
Related Questions
Necrosis is a symptom which is recognised by
pattern colouration on leaves
little leaves
out growth
death of tissues
Which one of the following acts as a communication system?
Blood
Nerve
Lymph
Enzymes
Origin of species was published by
Lamarck
Weismann
de Vries
Charles Darwin
Metastasis' is the process by which
cells divide rapidly under the influence of drugs
cancer cells spread through the blood or lymphatic system to other sites or organs
the chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles
cance cells are successfully inhibited to divide any futhere
Maize is attacked by
Phytophthora
Pythium
Ustilago
Puccinia
Sexual selection theory was propounded by
Wallace
De Vires
Lamarck
Charles Darwin
India's first transgenic crop was
Potato
Brinjal
Sugarcane
Bt cotton
Two tall plants, each being a hybrid and carrying a recessive factor for dwarfness are crossed. What proportion of their offspring will be dwarf?
0.5
0.25
0.75
1
One of the sequences given below represents a complete metamorphosis. Which one is it?
Egg - adult
Egg - nymph - adult
Egg - larva - pupa - adult
young one adult
Kwashiorkar is characterised by
dermatitis, changes in hair pigments and retarded brain growth
excretion of creatine in excess
tyrosinosis and alcaptonuria
None of these
Sterilization, as the means for the prevention of sepsis in surgery, was practised and advocated by
Louis Pasteur
Edward .Jenner
Joseph Lister
Martinus Willem Beijerinck
Which of the following plays an important part in photosynthesis?
Chloroplast
Centrosome
Tonoplast
Nematoblast
The rate of growth of plants can be measured by a/an
manometer
auxanometer
photometer
thermometer
The function of ribosomes is
Secretion
Excretion
Power house of the cell
Protein synthesis
The insects do not have blood pigments because
there is no blood
blood does not have a respiratory function
tissues have pigments
pigments are elsewhere
The potato is a modified stem, is explained by the presence of
Branches
Leaves
Buds
Scale leaves and auxiliary buds
In movable joints the tips of the bones are covered with
hyaline cartilage
calcified cartilage
elastic cartilage
fibrous cartilage
Ecology of a population is known as
demecology
synecology
autecology
space ecology
Mendel chose for his experiments the plant
Bean
Pea
Cucumber
Rose
The biogenetic law was proposed by
Alfred Russel Wallace
Charles Darwin
Ernst von Haeckel
Lamarck
The specific gravity of blood is
lower than water
higher than water
same as water
many times that of water
Rh+ blood is due to genes which are
dominant
recessive
codominant
neutral
Which of the following terms is used in Botany?
Recession
Dumping
Barter System
Biennial
Infection of salivary glands by a virus leads to
tetanus
mumps
pyorrhoea
ulcers
What is the bacterial disease in lime fruits?
Phythophthora
White rust
Citrus canker
Smut disease
A plant cell is distinguishable from an animal cell by the presence of
nucleus
cell wall
chloroplasts
cell membrane
The disease in which blood clotting does not take place is known as
xerophthalmia
haemopoiesis
haemophilia
haemoerythrin
The 'father of genetics' is
Mendel
Morgan
Darwin
Muller
Louis Pasteur developed the vaccine for ______ for the first time.
smallpox
cowpox
tetanus
chicken cholera
Insulin is produced in the human body by the
Heart
Kidney
Liver
Pancreas