If 4 individuals in a laboratory population of 40 fruitflies died during a specified time interval, say a week, the death rate in the population during that period is -

Match List-l with List-ll

List-l (Terms related to RNA)	List-II (Features)
(A). Capping	(I). Transcribes rRNAs
(B). Polyadenylation	(II). Removal of introns
(C). RNA polymerase I	(III). 5' end-methyl guanosine triphosphate addition
(D). Splicing	(IV). Addition of 200-300 adenylate residues

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Which of the following is always upright in an ecosystem?

Analogous structures like flippers of Penguins and Dolphins are formed as a result of:

Find the odd one out with reference to terrestrial ecosystem:

Which of the following will have 46 chromosomes?

Read the passage carefully and answer the given questions. Recombinant DNA Technology Asexual reproduction preserves the genetic information, while sexual reproduction permits variation. Traditional hybridization procedures used in plants and animals breeding very often lead to inclusion and multiplication of undesirable genes along with the desired genes. The techniques of genetic engineering, which include creation of recombinant DNA, use of gene cloning and gene transfer, overcome this limitation and allow us to isolate and introduce only one or a set of desirable genes without introducing genes into the target organism.
What is the purpose of using a gene promoter in recombinant DNA technology?

Acidified potassium dichromate oxidises iodides to \(\underline{X}\), sulphides to \(\underline{Y}\) and tin (II) to \(\underline{Z}\). \(X\), \(Y\) and \(Z\) respectively are:

Which of the following are NOT correct about "Sinking Fund"?
(A) It does not have any specific purpose.
(B) It can be used in any emergency.
(C) Any amount, any time can be deposited in it.
(D) It is set up for a particular upcoming expense.
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The steps of PCR (Polymerase Chain Reaction) are given below. Arrange them in a correct sequence.
A. Extension of primers
B. Denaturation of DNA fragments by heating
C. Amplified DNA fragments
D. Annealing of primers
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"The average osmotic pressure of human blood is \(7.8\ atm\) at \(27\ degree C\).
 The concentration of aqueous \(NaCl\) solution that can be used in the bloodstream is:
(Given \(R = 0.082\ L\ atm\ K^{-1}\ mol^{-1}\))"

Arrange the following in the decreasing order of basic strength in aqueous solution :
(A) \(CH_3NH_2\)
(B) \((CH_3)_3N\)
(C) \((CH_3)_2NH\)
(D) \(NH_3\)
(E) \(C_6H_5NH_2\)
Choose the correct answer from the options given below :

For a linear programming problem, the feasible region is shown in the figure by shaded portion, then linear constraints are