List of top Questions asked in NEET (UG)- 2005

During transcription holoenzyme RNA polymerase binds to a DNA sequence and the DNA assumes a saddle like structure at that point. What is that sequence called?
Which functional group participates in disulphide bond formation in proteins?
Which one of the following is expected to exhibit optical isomerism? (en = ethylenediamine)
The displacement x of a particle varies with time t as $x = ae^{-\alpha t}+be^{\beta t}$ where a, b, $\alpha$ and $\beta$ are positive constants. The velocity of the particle will
If the magnetic dipole moment of an atom of diamagnetic material, paramagnetic material and ferromagnetic material are denoted ny $\mu_d, \mu_p$ and $\mu_f$ respectively, then
Which one of the following makes use of RNA as a template to synthesize DNA ?
Which one of the following hydrolyses internal phosphodiester bonds in a polynucleotide chain ?
Which group of three of the following five statements (1 -5) contain all three correct statements regarding beri-beri? A. A crippling disease prevalent among the native population of sub-Sahara Africa. B. A deficiency disease caused by lack of thiamine (vitamin B1). C. A nutritional disorder in infants and young children when the diet is persistently deficient in essential protein. D. Occurs in those countries where the staple diet is polished rice. E. The symptoms are pain from neuritis, paralysis, muscle wasting, progressive oedema, mental deterioration and finally heart failure.
If $ {\lambda }_v , {\lambda }_x,{\lambda }_m $ represent the wavelengths of visible light, X-rays and microwaves respectively, then
An electron moves in a circular orbit with a uniform speed v. It produces a magnetic field B at the centre of the circle. The radius of the circle is proportional to:
The cell membranes are mainly composed of
Chlorophyll in chloroplast is located in
Bacillus thuringiensis (Bt) strains have been used for designing novel:
The catalytic efficiency of two different enzymes can be compared by the:
According to widely accepted 'fluid mosaic model' cell membranes are semi-fluid, where lipids and integral proteins can diffuse randomly. In recent years, this model has been modified in several respects. In this regard, which of the following statements is incorrect?
A solution of urea (mol mass $56\, g\, mol^{-1})$ boils at $100.18 ^\circ\,C$ at the atmospheric pressure. If $K_f$ and $K_b$ for water are $1.86$ and $0.512\, K\, kg$ $mol^{-1}$ the above solution will freeze at
A ball is thrown vertically upward. It has a speed of \(10\ m/s\) when it has reached one half of its maximum height. How high does the ball rise?
(Take \(g = 10\, m/s^2\))
In Ornithine cycle, which of the following wastes are removed from the blood ?
Which of the following statements regarding enzyme inhibition is correct
Damage to thymus in a child may lead to :
Which of the following is relatively most accurate method for dating of fossils ?
Barophilic prokaryotes
Production of a human protein in bacteria by genetic engineering is possible because :
Protein synthesis in an animal cell occurs :
Which of the following unicellular organisms has a macronucleus for trophic function and one or more micronuclei for reproduction?