A bus is moving with a speed of 10 ms⁻¹ on a straight road
A bus is moving with a speed of 10 ms⁻¹ on a straight road. A scooterist wishes to overtake the bus in 100 s. If the bus is at a distance of 1 km from […]
AIPMT2009
A particle starts its motion from rest under the action of a constant force
A particle starts its motion from rest under the action of a constant force. If the distance covered in first 10 seconds is S₁ and that covered in the first 20 seconds is S₂, then: […]
Which one of the following is correct pairing of a body part and the kind of muscle
Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it ?
Options
(a) Biceps of upper arm–Smooth muscle fibres (b) Abdominal wall–Smooth muscle […]
Which one of the following correctly describes the location of some body parts
Which one of the following correctly describes the location of some body parts in the earthworm Pheretima ?
Options
(a) Four pairs of spermathecae in 4 – 7 segments (b) One pair of ovaries […]
Plasmodesmata are:
Plasmodesmata are:
Options
(a) locomotary structures (b) membranes connecting the nucleus with plasmalemma (c) connections between adjacent cells (d) lignified cemented layers between cells
Correct Answer:
connections between adjacent cells
Explanation:
Plasmodesmata are connections […]
Stroma in the chloroplasts of ohigher plant contains:
Stroma in the chloroplasts of higher plant contains:
Options
(a) light-dependent reaction enzymes (b) ribosomes (c) chlorophyll (d) light-independent reaction enzymes
Correct Answer:
light-independent reaction enzymes
Explanation:
Stroma in the chloroplasts of higher plant […]
In the case of peppered moth (Biston betularia) the black
In the case of peppered moth (Biston betularia) the black – coloured form became dominant over the light- coloured form in England during industrial revolution. This is an example of:
Options
(a) appearance […]
What is not true for genetic code?
What is not true for genetic code?
Options
(a) It is nearly universal (b) It is degenerate (c) It is unambiguous (d) A codon in mRNA is read in a non contiguous fashion
Foetral ejection reflex in human female is induced by
Foetral ejection reflex in human female is induced by
Options
(a) release oxytocin from pituitary (b) fully developed foetus and placenta (c) differentiation of mammary glands (d) pressure exerted by amniotic fluid
Correct […]
Which one of the following is the most likely root cause why menstruation
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
Options
(a) maintenance of the hypertrophical endometrial lining (b) maintenance of […]