Which type of meristems allow the fallen stems of cereals/ grasses to become erect?
Apical meristem
Lateral meristem
Intercalary meristem
Secondary meristem
Curdling of milk in small intestine occurs due to the action of
trypsin
erypsin
rennin
chymotrypsin
Biomagnification refers to
rapid growth due to excessive intake of nutrients
increase in population size
decrease in population size
increase in concentration of non-degrabable pollutants as they pass through food chain
D.
increase in concentration of non-degrabable pollutants as they pass through food chain
Biomagnification is a phenomenon when the concentration of non-degradable pollutants continuously increases in successive trophic level in a food chain.
The AIDS virus spreads through
killer 'T' cells
helper 'T' cells
suppressor 'T' cells
carrier 'T' cells
CO is more toxic than CO2 because
it affects the nervous system
it damages lungs
it reduces the oxygen carrying capacity of haemoglobin
it forms acid with water
Cancer causing genes (oncogenes) were discovered by
Watson and Crick
Beadle and Tatum
Bishop and Varamus
Temin and Baltimore
Tay Sach's disease is due to
sex linked recessive gene
sex linked dominant gene
autosomal dominant gene
autosomal recessive gene