Select INCORRECT statement about the Hering-Breuer reflex.
It controls rhythm of respiration.
It controls depth of respiration.
It prevents the lungs from inflating to the point of bursting.
It keeps the glottis open during breathing.
Which of the following technique is used for invitro amplification of gene?
Electrophoresis
PCR
PAGE
SDS-PAGE
Match the properties of nerve fibres in Column I with their explanation in Column II
| Column I | Column II | ||
|---|---|---|---|
| i. | Irritability | a. | Halting of nerve impulse transmission due to exhaustion of neurotransmitter. |
| ii. | Synaptic fatigue | b. | Ability to perceive stimulus and enter into a state of activity. |
| iii. | Conductivity | c. | Many subliminal stimuli are given in quick succession. |
| iv. | Summation effect | d. | Ability to transmit the excitation. |
$\mathrm{i}-\mathrm{d}$, ii -b , iii -a , iv -c
i - a, ii - d, iii - b, iv - c
i - b, ii - a, iii - d, iv - c
i - c, ii - b, iii - a, iv - d
Select the correct sequential level with decreasing complexity of ecological organisation.
Biome, population, community, organism
Biome, community, population, organism
Community, population, organism, Biome
Organism, community, population, Biome
MHT CET (Biology) Papers
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