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A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?
The radii of the circular orbits of two satellites A and B of the earth are 4R and R, respectively. If the speed of the satellite A is 3v, then the speed of the satellite B will be:
Which of the following pairs share both isoelectronicity and isostructural characteristics? $\text{NO}_3^-$, $\text{CO}_3^{2-}$, $\text{ClO}_3^-$, $\text{SO}_3$
A body of mass $m$ is kept on a rough horizontal surface (coefficient of friction = $\mu$). A horizontal force is applied to the body, but it does not move. The resultant of normal reaction and the frictional force acting on the object is given by $\vec{F}$, where:
A complex ion among the following that can absorb visible light is: (At. no. Zn = 30, Sc = 21, Ti = 22, Cr = 24)
The Brewsters angle $i_b$ for an interface should be
The order of energy absorbed, which is responsible for the color of complexes, is: (A) $[Ni(H_2O)_2(en)_2]^{2+}$ (B) $[Ni(H_2O)_4(en)]^{2+}$ (C) $[Ni(en)_3]^{2+}$
When a string is divided into three segments of lengths $l_1, l_2$ and $l_3$, the fundamental frequencies of these three segments are $\nu_1, \nu_2$ and $\nu_3$ respectively. The original fundamental frequency ($\nu$) of the string is:
If a square loop ABCD carrying a current i is placed near and coplanar with a long straight conductor XY carrying a current I, what will be the net force on the loop?
A paramagnetic molecule among the following is:
Consider the given compound: In the given options, the following for the above compound are, respectively: (i) $sp^{2}$ hybridised carbon atoms and (ii) $\pi$ bonds.
Two periodic waves of intensities $I_1$ and $I_2$ pass through a region at the same time in the same direction. The sum of the maximum and minimum intensities is:
The correct statement among the following about $[Co(CN)_6]^{3-}$ is :
Predict the correct intermediate and product in the following reaction: $$ H_3C-C \equiv CH \xrightarrow{H_2O, H_2SO_4, HgSO_4} \text{Intermediate} \to \text{Product} $$
An isostructural compound with $XeF_2$ among the following is:
The potential energy between two atoms in a molecule is given by $U(x) = \frac{a}{x^{12}} - \frac{b}{x^6}$, where $a$ and $b$ are positive constants and $x$ is the distance between the atoms. The atoms are in stable equilibrium when:
Increasing order of bond length is:
Cotyledon of maize grain is called?
What is the dominant intermolecular force that must be overcome in converting liquid $CH_3OH$ to a gas?
The test-tube baby programme employs which one of the following techniques?