Multiple Choice QuestionsWhich 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
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
Interacting populations are
symbiotic
mutualistic
parasitic
coevolved
D.
coevolved
Interacting populations are coevolved, i.e. the evolution in one species/ population in response to other species of the same community is called coevolution.
Symbiosis is a type of close and long term biological interaction between two different biological organisms.
A mutualistic relationship is when two organisms of different species work together, each benefiting from the relationship.
A parasitic relationship is one in which one organism the parasite, lives off on other organism, the host , and harms it and cause death.
Tay Sach's disease is due to
sex linked recessive gene
sex linked dominant gene
autosomal dominant gene
autosomal recessive gene
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