What is 'atavism'?
The genes which show numerous phenolypic effects
Reappearance of traits after several generations
Effects of mutation
Intermediate inheritance of genes
Correct Answer :
B. Reappearance of traits after several generations
Related Questions
The eland having endorine as well as exocrine function is
Adrenal gland
Thyroid gland
Pituitary gland
Pancreatic gland
The artificial kidney is a
machine
transplant
another's kidney
other kidney form same body
Polyploid wheat does not normally show an increase in
size
vigour
length of the life cycle
resistance to desease
The white blood corpuscles the body because they are popularly called soldiers of
march at a regular pace
appear uniform
defend the body
are disciplined
Insulin is produced in the human body by the
Heart
Kidney
Liver
Pancreas
Which element in chillies causes burning sensations?
Capsaicin
Cyanogen
Ammonia
Capsicum
Which one of the following is not an essential micronutrient for plants?
Boron
Zinc
Sodium
Copper
The spores of Puccinia formed on the leaves of wheat are called
Basidiospores
Ascidiospores
Uredospores
Pycnospores
Valve a are present inside
Arteries
Capillaries
Veins
Lymph vessels
Temperature treatment which shortens the vegetative period and hastens the flowering is called
Phototropism
Photoperiodism
Vernalisation
Thermoregulation
Fusarium causes the wilting of the cotton plants by
clogging the vessels
producing toxic substance
causing necrosis of roots
killing the leaves
The Green Revolution in India owes much to
MS Swaminathan
TS Venkataraman
Norman Borlaug
Prime Minister
An organism eating its own species is called
carnivore
detritivore
cannibal
herbivore
The medulla oblongata encloses the
optic lobe
optic capsule
second ventricle
fourth ventricle
Human blood is oxygenated and purified in the
heart
lungs
liver
kidneys
Which of the following diseases is caused by the deficiency of iron in human body?
Anaemia
Scurvy
Dermatosis
None of these
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
The corn in an underground stem that grows
horizontally
vertically
above the soil
obliquely
Cancer cells are more easily damaged by radiation than normal cells because they are
different in structure
non-dividing
starved of nutrition
undergoing rapid division
The part of the human brain concerned with sight is the
Frontal lobe
Parietal lobe
Temporal lobe
Occipital lobe
The plants will stop growing if the shoot tip is cut off because
shoot tip produces growth hormones
shoot tip contains meristematic cells
shoot tip is the growing part
the plant dies
A person with a blood group ____ is considered to be an universal donor.
A Positive
AB Positive
AB Negative
O Positive
Fat present below the skin surface in our body acts as a barrier against
loss of heat from the body
loss of essential body fluids
loss of salts from the body
entry of harmful micro-organisms from the environment
Memory is the responsibility of
cerebrum
cerebellum
medulla oblongata
spinal cord
Dinosaur is a/an
Fish
Amphibian
Reptile
Bird
Blood is
acidic
alkaline
neutral
like a buffer
Evergreen forests are confined to
Equatorial region
Temperate region
Alpine region
Arctic region
Who discovered the electron microscope?
Knoll and Ruska
Rudolf and Kolliker
Robert Hooke
CP Swanson
Leafy trees help in preventing
Land pollution
Water pollution
Noise pollution
Air pollution
The hormone secreted when one is frightened or excited
pituitrin
thyroxine
adrenaline
parathormone