List of top Questions asked in NEET (UG)

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.
Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

Which of the following statements about RuBisCO is true?

Match List - I with List II

List I	List II
A. Scutellum	II. Cotyledon of Monocot seed
B. Non-albuminous seed	IV. Rudimentary cotyledon
C. Epiblast	III. Groundnut
D. Perisperm	I. Persistent nucellus

For the reaction A(g) $\rightleftharpoons$ 2B(g), the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500, at 1000 K.
[Given: R = 0.0831 atm $mol^{–1} K^{–1}$]
$K_p$ for the reaction at 1000 K is:

Given below are two statements:
Statement I: The DNA fragments extracted from gel electrophoresis can be used in the construction of recombinant DNA.
Statement II: Smaller size DNA fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.

Given below are two statements:
Statement I: Transfer RNAs and ribosomal RNA do not interact with mRNA.
Statement II: RNA interference (RNAi) takes place in all eukaryotic organisms as a method of cellular defence.
In the light of the above statements, choose the most appropriate answer from the options given below:

Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii $r_A$ and $r_B$ respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio $r_A / r_B$ is:

A wire of resistance $R$ is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The primary function of the Golgi apparatus is to package the materials made by the endoplasmic reticulum and deliver it to intracellular targets and outside the cell.
Reason (R): Vesicles containing materials made by the endoplasmic reticulum fuse with the cis face of the Golgi apparatus, and they are modified and released from the trans face of the Golgi apparatus.

What are the potential drawbacks in adoption of the IVF method? A. High fatality risk to mother
B. Expensive instruments and reagents
C. Husband/wife necessary for being donors
D. Less adoption of orphans
E. Not available in India
F. Possibility that the early embryo does not survive
Choose the correct answer from the options given below:

Which of the following are the post-transcriptional events in an eukaryotic cell? (A) Transport of pre-mRNA to cytoplasm prior to splicing.
(B) Removal of introns and joining of exons.
(C) Addition of methyl group at 5' end of hnRNA.
(D) Addition of adenine residues at 3' end of hnRNA.
(E) Base pairing of two complementary RNAs.
Choose the correct answer from the options given below:

A model for a quantized motion of an electron in a uniform magnetic field B states that the flux passing through the orbit of the electron is $ \phi = n h / e $ where $n$ is an integer, $h$ is Planck's constant and $e$ is the magnitude of electron's charge. According to the model, the magnetic moment of an electron in its lowest energy state will be ($m$ is the mass of the electron):

Which one of the following is an example of ex-situ conservation?

A ball of mass 0.5 kg is dropped from a height of 10 m. The ball hits the ground and rises to a height of 1.5 m. The impulse imparted to the ball during its collision with the ground is : (Take $g = 9.8 \, \text{m/s}^2$)

Which one of the following enzymes contains 'Heme' as the prosthetic group?

Match List I with List II:

Choose the correct answer from the options given below:

Match List - I with List II

List I	List II
A. Adenosine	III. Nucleoside
B. Adenylic acid	II. Nucleotide
C. Adenine	I. Nitrogen base
D. Alanine	IV. Amino acid

Among the following, choose the ones with an equal number of atoms.

212 g of Na₂CO₃ (s) [molar mass = 106 g]
248 g of NaNO₃ (s) [molar mass = 62 g]
240 g of NaOH (s) [molar mass = 40 g]
12 g of H₂ (g) [molar mass = 2 g]
220 g of CO₂ (g) [molar mass = 44 g]

Choose the correct answer from the options given below:

Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.

A physical quantity P is related to four observations a, b, c, and d as follows: P = a³ b² (c / √d) The percentage errors of measurement in a, b, c, and d are 1%, 3%, 2%, and 4% respectively. The percentage error in the quantity P is:

What is Microalbuminuria ?

The output (Y) of the given logic implementation is similar to the output of an/a …………. gate.

An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature $27^\circ$C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, $R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}$, and molecular mass of $O_2 = 32 \text{ g/mol}$, 1 atm pressure = $1.01 \times 10^5 \text{ N/m}^2$]

A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current is:

In the above represented plasmid an alien piece of DNA is inserted at the EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies?