List of practice Questions

A non-staining secondary constriction at a constant location of few chromosomes is called
The bonds found in a polynucleotide chain between the individual nucleotides and nitrogen bases are
Identify the correct pair from the following
A. Golden algae - diatoms
B. Trichodesmium erythrium - Red Sea
C. Kieselguhr - Chrysophytes
D. Red tides of Mediterranean sea - Dinoflagellates
Assertion (A): Fertilization in Cycas is called siphonogamy and zooidogamy.
Reason (R): Male gametes are multiciliate and carried by pollen tube.
Identify the organisms based on their cell wall characteristics such as pseudomurein, mycolic acid, stiff cellulose plates, chitin.
Find the correct matching
A) Carrot -- Flowers appear from the same point of peduncle
B) Cocos -- Flowers protected by the modified bract
C) Achyranthes -- Flowers appear in the varied lengths of pedicels
D) Cassia -- Flowers appear on the flattened peduncle
Assertion (A): Dry dehiscent fruits are usually single seeded.
Reason (R): Tridax fruit is cypsella with pappus like calyx.
State the condition and plant that prevents both autogamy and geitonogamy in this plant.
Plant that possess characters like ramenta, archegonia, circinate

Match the following.

Below shown molecules are

In which of the following, drug class is correctly matched with the criteria of drug classification?
In which of the following chain termination step is absent?
Identify the correct statement
The sum of oxygen atoms in the formulae of peroxysulphuric acid and pyrosulphuric acid is
The process of converting a precipitate into colloidal solution is known as
Ethane on heating with a regulated supply of air at high pressure in presence of manganese acetate forms 'Q'. 'Q' is
The value of \(\begin {vmatrix} \frac{√3}{2}&\frac{1}{2} \\\frac{√3}{2} &\frac{1}{2}\end {vmatrix}\)
If \(A=\begin{bmatrix} -2&6\\-5&-1\end{bmatrix}\) then \(A^{-1}\) is:
Let \(A = [a_{ij}]\) be a 2×2 matrix such that \(aij=\frac{|-3i + j|}{2}\)  then \(a_{21}\) is :
Given below are two statements
Assertion (A) : Protium and deuterium differ in their rates of reactions
Reason (R) : They have different enthalpies of bond dissociation The correct answer is
The volume of a spherical balloon is increasing at the rate of \( 6 cm^3/sec\). The rate of change of its surface area when its radius 2 cm is:
Ram and Shyam are playing a game by throwing a die alternatively till one of them gets a '\('1'\) and wins the game. The probabilities of winning by Ram and Shyam respectively if Ram starts first, is
The pH of 0.01M BOH solution is 10. What is its degree of dissociation? (Given $ K_b $ of BOH is $ 1 \times 10^{-6} $)
The effective rate which is equivalent to stated rate of \(6\%\) compounded semiannually is: