List of top Questions asked in NEET (UG)- 2018

Among the following sets of examples for divergent evolution, select the incorrect option :

Hormones secreted by the placenta to maintain pregnancy are

The Golgi complex participates in

Offsets are produced by

Select the incorrect match :

The experimental proof for semiconservative replication of DNA was first shown in a

Match the items given in Column I with those in Column II and select the correct option given below:

Many ribosomes may associate with a single $mRNA$ to form multiple copies of a polypeptide simultaneously. Such strings of ribosomes are termed as

The stage during which separation of the paired homologous chromosomes begins is

Which of the following statements is not true for halogens?

Which among the following is not a prokaryote ?

A woman has an $X$ -linked condition on one of her $X$ chromosomes. This chromosome can be inherited by

The contraceptive "SAHELI"

A sample of $0.1\,g$ of water at $100^{\circ}C $ and normal pressure $(1.013 \times 10^5 \, Nm^{ -2})$ requires $54\,cal$ of heat energy to convert to steam at $100^{\circ}C $. If the volume of the steam produced is $167.1\, cc$, the change in internal energy of the sample, is

After karyogamy followed by meiosis, spores are produced exogenously in

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 ?

The magnetic potential energy stored in a certain inductor is $25 \,mJ,$ when the current in the inductor is $60\, mA$ This inductor is of inductance

An inductor $20\, mH$, a capacitor $100\, \mu F$ and a resistor $50 \, \Omega$ are connected in series across a source of emf, $V\, = \,10 \,sin\, 314\, t$. The power loss in the circuit is

The correct order of steps in Polymerase Chain Reaction $(PCR)$ is

Calcium is important in skeletal muscle contraction because it

Nissl bodies are mainly composed of

The type of isomerism shown by the complex $[CoCl_2(en)_2]$ is

The bond dissociation energies of $X_2 , Y_2$ and $XY $ are in the ratio of $1 : 0.5 :1. \Delta H$ for the formation of $XY$ is - $200\, kJ\, mol^{-1}$. The bond dissociation energy of $X_2$ will be

For a radioactive material, half-life is $10$ minutes. If initially there are $600$ number of nuclei, the time taken (in minutes) for. the disintegration of $450$ nuclei is

At what temperature will the rms speed of oxygen molecules become just sufficient for escaping from the Earth�s atmosphere ? (Given: Mass of oxygen molecule $(m) = 2.76 \times 10^{-26} kg $ Boltzmann�s constant $k_B = 1.38 \times 10^{-23} J \, K^{-1}$)