Oxygen is not produced during photosynthesis by
Oxygen is not produced during photosynthesis by Option 1 : CharaOption 2 : Green sulphur bacteriaOption 3 : CycasOption 4 : Nostoc
September 2023
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?
Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other? Option 1 : ViolaOption 2 : BananaOption 3 : HydrillaOption 4 : Yucca
In an oil reservoir, the residual oil saturation in the volume flooded with polymer solution is 20%
Q. In an oil reservoir, the residual oil saturation in the volume flooded with polymer solution is 20%. The initial water saturation is 20%. The volumetric sweep efficiency is 50%. The maximum possible recovery factor for the reservoir is _______% (round off to 1 decimal place). Ans: 36-39 Sol:
Double fertilization is
Double fertilization is Option 1 : Fusion of two male gametes of a pollen tube with two different eggsOption 2 : Fusion of two male gametes with one eggOption 3 : Fusion of one male gamete with two polar nucleiOption 4 : Syngamy and triple fusion
Oil is produced at a constant rate from a well in a bounded reservoir
Q. Oil is produced at a constant rate from a well in a bounded reservoir. The variation of the bottom-hole pressure with time is shown in the given Table. The magnitude of the slope of the pressure vs time curve that you would use to find the drainage area is_____-psi/day (round off to 1 decimal
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Stomoata in grass leaf are
Stomoata in grass leaf are Option 1 : Kidney shapedOption 2 : Dumb-bell shapedOption 3 : Barrel shapedOption 4 : Rectangular
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
Pollen grains can be stored for several years in liquid nitrogen having a temperature of Option 1 : -120°COption 2 : -160°COption 3 : -80°COption 4 : -196°C
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The stage during which separation of the paired homologous chromosomes begins is
Option 1 :ZygotenOption 2 : PachyteneOption 3 : DiploteneOption 4 : Diakinesis Correct answer is Option 3.
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Typical parameters obtained in the pyrolysis experiment of the source rock materials are shown in the Figure
Q. Typical parameters obtained in the pyrolysis experiment of the source rock materials are shown in the Figure. Which one of the following is NOT true about pyrolysis in source rock analysis? A. Peak S1 represents volatilization of existing hydrocarbons. B. Peak S2 represents breakdown of kerogen and generation of hydrocarbons. C. Peak S3 represents
A box contains 2 red and 3 black balls. Three balls are randomly chosen from the box and are placed in a bag
Q. A box contains 2 red and 3 black balls. Three balls are randomly chosen from the box and are placed in a bag. Then the probability that there are 1 red and 2 black balls in the bag is . Ans: 0.59-0.61 Sol: The required probability is