Sickle-cell anaemia is:

Which of the following is a man-made ecosystem?

Chasmogamous flowers are -

The basic steps involved in the genetic modification of an organism inlcude -
(A) Identification of DNA with desirable genes
(B) Production and clinical trial of drugs
(C) Introduction of the identified DNA into the host
(D) Maintenance of introduced DNA in the host and transfer of the DNA to its progeny
Choose the most appropriate combination from the options given below.

Mature mRNA is a fully processed

A novel strategy to prevent infestation of roots of tobacco plant with the nematode Meloidegyne incognitia is :

Identify the common Sexually Transmitted Infections (STIs):

The number of electrons in one coulomb of electric charge is :

Chromosomes 'Z' and 'W' for sex determination are seen in :

If \(A=\left[\begin{array}{ccc}1 & 2 & 3 \\ -4 & -5 & -6\end{array}\right], \quad B=\left[\begin{array}{cc}2 & -3 \\ 4 & -5 \\ 2 & -1\end{array}\right]\) and \(B A=\left[b_{i j}\right]\), then \(\left(b_{23}-b_{31}\right)\) is equal to

Read the following passage carefully and answer the given questions.
Bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum. Statins produced by the yeast Monascus purpureus have been commercialised as blood-cholesterol lowering agents. It acts by competitively inhibiting the enzyme responsible for synthesis of cholesterol. Baculoviruses are pathogens that attack insects and other arthropods. The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications. They have been shown to have no negative impacts on plants, mammals, birds, fish or even on non-target insects. BOD refers to the amount of the oxygen that would be consumed if all the organic matter in one liter of water were oxidised by bacteria. The sewage water is treated till the BOD is reduced. Cheese, is one of the oldest food items in which microbes were used. Different varieties of cheese are known by their characteristic texture, flavour and taste. For example, the large holes in 'Swiss cheese' are due to production of a large amount of CO₂ by a bacterium named Propionibacterium sharmanii.
The greater the BOD of waste water-

The step 'B' in the figure is called as:

The interval in which \(y=x^2 e^{-x}\) is strictly increasing is: