List of top Questions asked in NEET (UG)

Mycorrhizae are the example of
Presence of plants arranged into well defined vertical layers depending on their height can be seen best in :
Frog's heart when taken out of the body continues to beat for some time.
Select the best option from the following statements:
  1. Frog is a poikilotherm
  2. Frog does not have any coronary circulation
  3. Heart is "myogenic" in nature 
  4. Heart is autoexcitable
Which statement is wrong for Krebs' cycle?
The DNA fragments separated on an agarose gel can be visualised after staining with
Lungs are made up of air-filled sacs the alveoli. They do not collapse even after forceful expiration, because of:
Identify the wrong statement in context of heartwood.
A dioecious flowering plant prevents both:
The DNA double helix is exposed
A gene whose expression helps to identify transformed cell is known as
Asymptote in a logistic growth curve is obtained when
In Bougainvillea thorns are the modifications of
Which one from those given below is the period for Mendel's hybridization experiments?
Artificial selection to obtain cows yielding higher milk output represents
Select the correct route for the passage of sperms in male frogs :
The function of copper ions in copper releasing IUD's is :
Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
Two Polaroids P1 and P2 are placed with their axis perpendicular to each other. Unpolarised light l0 is incident on P1. A third polaroid P3 is kept in between P1 and P2 such that its axis makes an angle 45º with that of P1. The intensity of transmitted light through P2 is
A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance x from the source. The beam is reflected back as a spot on a scale placed just above the source L. When the mirror is rotated through a small angle θ, the spot of the light is found to move through a distance y on the scale. The angle θ is given by
A spherical black body with a radius of $12\,cm$ radiates $450\,watt$ power at $500\,K$. If the radius were halved and the temperature doubled, the power radiated in watt would be :
The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as:
Spliceosomes are not found in cells of
A 5000 kg rocket is set for vertical firing. The exhaust speed is 800 m/s. To give an initial upward acceleration of 20$m/s^{2},$ the amount of gas ejected per second to supply the needed thrust will be (Take g = 10 $m/s^{2}$)
The acceleration due to gravity at a height $1\, km$ above the earth is the same as at a depth $d$ below the surface of earth. Then :
Receptor sites for neurotransmitters are present on