ELISA is based on the principles of:

Which one of the followings is not a feature of insecticidal protein crystals formed by Bacillus thuringiensis: -

In 1997, the first transgenic cow, Rosie, produced human protein-enriched milk. The milk contained the _________ and was nutritionally a more balanced product for human babies than natural cow-milk.

The pioneer species of primary succession in water are:

Propionibacterium sharmanii is used in the production of :

Match List-l with List-II

LIST- I (Population interaction)	LIST- II ( Example)
(A) Parasitism	(I) Herbivores and plants
(B) Commensalism	(II) Human liver fluke
(C) Mutualism	(III) Egret and grazing cattle
(D) Competition	(IV) Lichens

Choose the correct answer from the options given below:

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?

Royal records were engraved on 'tamra-patra' in ancient times. 'Tamra patra' here means

The area of triangle with vertices \(P, Q, R\) is given by (where \(\overrightarrow{A B}=\) position vector of point \(B-\) position vector of point \(A\) )

The total cost \(C(x)\) in Rupees associated with the production of \(x\) units of an item is given by
\(C(x)=0.007 x^3+26 x^2+15 x+400\) 
The marginal cost when 10 items are produced is:

Copper T is used as an Intra Uterine Device (IUD) for contraception. Identify
the correct statement for its mode of action
(A) It is made up of ionized copper.
(B) It releases Cu ions that suppress sperm motility.
(C) It makes the uterus unsuitable for implantation.
(D) It decreases sperm phagocytosis within the uterus.

The vector equation of line passing through \((-1,3,-2)\) and perpendicular to the lines \(\frac{x+4}{1}=\frac{y}{2}=\frac{z-3}{3}\) and \(\frac{x+2}{-3}=\frac{y+5}{2}=\frac{z-6}{5}\) is

A integrating factor of the differential equation \(\frac{d y}{d x}+\frac{y}{x}=\frac{1}{x^2}(x>0)\) is equal to