An insect ingests the inactive toxin, it is converted into an active form of toxin due to

Which one of the following represents a palindromic sequence?

Which among the following is not a primary consumer?

The typical test cross is performed between -

DNA recombinant technology involves the use of restriction endonucleases. After having cloned the gene of interest and having optimised the conditions to induce the expression of the target protein, one has to consider producing it on a large scale. The cells harbouring cloned genes of interest may be grown on a small scale in the laboratory. In order to link the alien DNA, the vector needs to have very few, preferably single, recognition sites for the commonly used restriction enzymes. Presence of more than one recognition sites within the vector will generate several fragments, which will complicate the gene cloning. In Biolistics or gene gun method cells are bombarded with high velocity micro particles of gold or tungsten coated with DNA. The ligation of alien DNA is carried out at a restriction site present in one of the two antibiotic resistance genes. For example, you can ligate a foreign DNA at the BamH I site of tetracycline resistance gene in the vector pBR322. Since the DNA is enclosed within the membranes, we have to break the cell open to release DNA along with other macromolecules such as RNA, proteins, polysaccharides and also lipids. The RNA can be removed by treatment with ribonuclease whereas proteins can be removed by treatment with protease. Other molecules can be removed by appropriate treatments and purified DNA ultimately precipitates out after the addition of chilled ethanol.
Which one of the following enzymes should be used to break the bacterial cells for isolation of DNA?

Match List-l with List-ll

List-l (Trophic levels in an ecosystem	List-ll (Examples)
(A) Fourth trophic level	(I) Fishes
(B) Second trophic level	(II) Phytoplankton
(C) First trophic level	(III) Zooplankton
(D) Third trophic level	(IV) Man

Choose the correct answer from the options given below:

Which one of the followings would increase population density after certain time?

Downstream processing method involves:

Read the passage and answer the following
Microbes are organisms that cannot be seen with the naked eye. They include bacteria, archaea, protists, viruses, prions, and fungi. They account for most of the diversity of life on earth. Far more microbes inhabit a single person's body than there are people on the entire planet. Microbes also dominate in terms of their ability to live and thrive in extreme environments, including clouds, deep-sea volcanoes, springs, ice caps, and animal intestines. Most animals, including humans, exhibit numerous associations with microbes. Our "human microbiome" includes our skin, hair, mouth, and gut.
Select the chemical substances which are produced by some microbes and they can kill or prevent growth of other microbes :

The product (Y) in the following reaction is
\(\text{2 C}_6\text{H}_5\text{CHO} \xrightarrow[\text{Heat}]{\text{conc. NaOH}} \text{Y} + \text{C}_6\text{H}_5\text{COONa}\)

If \(P, Q\) and \(R\) are matrices of order \(2 \times 3,3 \times 5\) and \(5 \times 3\) respectively. Then which of the following are valid?
(A) \(P Q R\)
(B) \(P R Q\)
(C) \(Q R\)
(D) \(R Q\)
(E) \(P R\)
Choose the correct answer from the options given below :

If \(A=\left[\begin{array}{ll}1 & 2 \\ 4 & 5\end{array}\right]\) then
Match List-I with List-II

List-I	List-II
(A) \(\operatorname{det}(A)\)	(I) \(-\frac{1}{3}\)
(B) \(\operatorname{det}\left(A^{-1}\right)\)	(II) \(- 12\)
(C) \(\operatorname{det}(2 A)\)	(III) \(- 3\)
(D) \(\operatorname{det}\left( 3 A ^T\right)\)	(IV) \(- 27\)

Choose the Correct answer from the options given below :

Solution of the differential equation \(\log \left(\frac{d y}{d x}\right)=3 x+4 y\) given that y = 0 when x = 0 :