Select the incorrect statement/s from the following -
(A) In human male, the testes are situated outside the abdominal cavity within a pouch.
(B) Primary spermatocytes undergo mitosis to form secondary spermatocytes.
(C) Sertoli cells provide nutrition to the germ cells.
(D) Seminal plasma is rich in glucose, calcium and certain enzymes.
Choose the correct answer from the options given below :

Select the Mendelian disorder out of the following:

Male grasshopper is an example of

Bt toxins are insect group specific proteins. Gene named crylAc and cryllAb control:

Rauwolfia vomitoria growing in different Himalayan ranges, is an example of :

Arrange the following PCR steps in the correct sequence.
A. Extension of Primers
B. Amplification of DNA
C. Annealing of Primers
D. Denaturation of DNA fragment
Choose the correct answer from the options given below:

The reasons why not both the strands of DNA are copied during transcription are:
(A) Replication fork will not be formed
(B) The two RNA molecules synthesised will form dsRNA molecule
(C) Complicate the genetic information transfer machinery
(D) dsRNA molecule will not be translated into proteins
Choose the correct answer from the options given below:

For \(x \neq-1\), if \(\int \frac{x e^x d x}{(1+x)^2}=\frac{a e^x}{(1+x)^b}+c\), where \(a, b\) are fixed numbers and \(c\) is the integration constant, then \(a+b\) is equal to

Which one of the following areas does not cover India's biodiversity hotspots?

p-block elements are placed in groups 13 to 18 of the periodic table. Group 15 is nitrogen family.
Nitrogen makes various compounds like \(NH _3, HNO _3, N_2 O , NO _2\) etc. Phosphorus exists in the form of white and red phosphorus. White phosphorus glows in dark. \(PH _3\) gas is used as smoke screen. Group 16 is called oxygen family. Dry air contains \(21% O_2\) gas by volume. Combined sulphur exists as sulphates such as gypsum, epsome salt, baryte etc. The allotropic forms of sulphur are Rhombic and monoclinic sulphur. \(S_2\) is paramagnetic like \(O_2\) and it stable at high temperature. Group 17 is Halogen family. \(F _2\) is highly reactive, \(Cl _2\) is greenish yellow gas. Both \(SO _2\) and \(Cl _2\) are used for bleaching. Group 18 is Noble gas family but some noble gases also form compounds.
Complete hydrolysis of \(XeF _6\) gives HF and \(XeO _3\) as main products. The permanent bleaching effect is caused by :

The increase in the sale of shawls during winters is an example of :

Identify the incorrect statement about genetically modified plants.

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