Arrange the following steps of gel electrophoresis in correct sequence:
(A) Staining the DNA with ethidium bromide
(B) Movement of DNA fragments towards anode under an electric field through agarose
(C) Exposure to UV radiation
(D) Separation of DNA fragments according to their size
Choose the correct answer from the options given below:

Observe the figure and answer the following:

The given diagram represents stages (A-E) of development of the embryo sac in angiosperms. Which of the following correctly identifies the structure labelled (ii), (iii), (iv), (v), and (vi) in figure E?

Given below are some statements which should be followed to avoid sexually transmitted infections.
Which of the following are correct?
(A) Avoid sex with unknown partners/multiple partners.
(B) Always use medicated IUDs during coitus.
(C) In case of doubt always consult a qualified doctor and get complete treatment if diagnosed infection.
(D) Adopt natural methods of contraception during coitus.
(E) Use of oral pills before coitus.
Choose the correct answer from the options given below:

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.
Which of the following statements are correct about microbes ?
(A) All microbes are pathogenic
(B) Microbes can grow at 80°C temperature
(C) Microbes can be present at places where no other life-forms possibly exist
(D) All microbes are microscopic
Choose the correct answer from the options given below:

Match List-l with List-ll

List-I (Terms)	List-II (Features)
(A) Spermatogenesis	(I) Nutrition to germ cells
(B) Acrosome	(II) Testicular hormones
(C) Leydig's cells	(III) Penetration of sperm
(D) Sertoli cells	(IV) Formation of sperms

Choose the correct answer from the options given below:

Choose the most appropriate option about the presence of nitrogenous bases; Cytosine, 5-methyl uracil and Uracil.

Match List-l with List-ll

List-l (Microorganisms)	List-II (Commercial Uses)
(A) Lactobacillus	(I) Use for the production of butyric acid
(B) Saccharomyces cerevisiae	(II) Use for production of swiss cheese
(C) Propionibacterium sharmanii	(III) Use for making bread
(D) Clostridium butylicum	(IV) Improves nutritional quality of milk by increasing vitamin B12

Choose the correct answer from the options given below:

The following statements describe various properties of a Mercury cell :
(A) It converts energy of combustion into electrical energy
(B) It is rechargeable
(C) The cell reaction involved is Zn(Hg) + HgO(s) \(\rightarrow\) ZnO(s) + Hg(l)
(D) It is a low current device used in hearing aids
Choose the correct answer from the options given below :

For \(x \in\left(0, \frac{\pi}{2}\right), \int \frac{1}{\sin ^2 x+\sin 2 x} d x\) is equal to

In an AC generator when the plane of the armature is perpendicular to the magnetic field, what will be the magnitude of the magnetic flux passing through the coil and the emf induced in the coil be ?

Which one of the following is not associated with the process of transcription in bacteria?

Which of the following option shows the Brewster's law in polarisation of light ?

Young's double slit experiment is carried out using green, yellow, red, and blue lights one by one. Arrange the expected values of fringe widths (\( \beta \)) in increasing order :
(A) \( \beta_{Green} \)
(B) \( \beta_{Yellow} \)
(C) \( \beta_{Blue} \)
(D) \( \beta_{Red} \)
Choose the correct answer :