List of top Questions asked in NEET (UG)- 2001

Anemophily type of pollination is found in
What is the best pH of the soil for cultivation of plants
Enzyme first used for nitrogen fixation
What is true for plasmid
What is true for cyanobacteria
Proteinaceous pigment which control the activities concerned with light
Which pair is wrong
When water moves through a semi permeable membrane then which of the following pressure develops?
Roots of which plant contains a red pigment which have affinity for oxygen
Triticale is obtained by crossing wheat with
In grasses what happens in micro spore mother cell for the formation of mature pollen grains
The dimensions of Planck constant equals to that of
A black body has wavelength $\lambda_m$ corresponding to maximum energy at 2000 K. Its wavelength corresponding to maximum energy at 3000 K will be:
Frequency of an allele in an isolated population may change due to
An electron having mass m and kinetic energy E enter in uniform magnetic field B perpendicularly, then its frequency will be
In preparation of alkene from alcohol using $ Al_2 O_3$, which is effective factor?
Darwin's theory of pangenesis shows similarity with theory of inheritance of acquired characters then what shall be correct according to it
At the time of organogenesis genes regulate the process at different levels and at different time due to
An organic compound $A(C_4 H_9 C1)$ on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative, then A is
Maximum number of bases in plasmids discovered so far
A compound of molecular formula $C_7H_{16}$ shows optical isomerism, compound will be
Characteristics character of human cornea
If the energy of a hydrogen atom in nth orbit is $E_n$, then energy in the nth orbit of a singly ionized helium atom will be
For the reaction, $2N_{2}O_{5} \to 4NO_{2} + O_{2}$ rate and rate constant are $1.02 \times 10^{-4}\,mol\, L^{-1} s^{-1}$ and $3.4 \times 10^{-5} s^{-1}$ respectively. The concentration of $N_{2}O_{5}$ in mol $L^{-1}$ will be
A cylindrical rod having temperature T1 and T2 at its end. The rate of flow of heat Q1 cal/sec. If all the linear dimension are doubled keeping temperature remain const. then rate of flow of heat Q2 will be