What are seen as "beads on string" structure when viewed under an electron microscope ?

Biofertilisers are the organisms that enrich the nutrient quality of the soil.
Which of the following is not a source of biofertiliser?

Match List I with List II

List - I (Group)	List - II (Organism)
(A) Lepidoptera	(I) Beetles
(B) Bacteria	(II) Armyworm
(C) Diptera	(III) Bacillus
(D) Coleoptera	(IV) Mosquitoes

Choose the correct answer from the options given below:

In sewage treatment, flocs are:

The rupturing of RBCs is associated with release of a toxic substance known as:-

Match List I with List II

LIST I	LIST II
A. Anaerobic sludge digestor	I. Secondary treatment
B. Primary sludge	II. Activated sludge
C. Change in BOD	III. Primary treatment
D. Bacterial flocs	IV. Biogas

Choose the correct answer from the options given below:

Arrange the following steps of curd formation from milk.
(A) Coagulation and partial digestion of milk protein
(B) Growth of starter culture
(C) Growth of lactic acid bacteria (LAB) in milk
(D) A small amount of curd is added as an inoculum to fresh milk
Choose the correct answer from the options given below:

A parallel plate capacitor half filled with a dielectric of dielectric constant 4 has a capacitance of 10 \( \mu\text{F} \). The capacitance without the dielectric is :

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.
Baculoviruses are -

Methyl bromide reacts with silver nitrite to form :

The number of individuals in the reproductive age group is more than the number of individuals in the pre-reproductive age group, the shape of its age pyramid would reflect the growth status of the population as:

At resonance of a series LCR circuit.
A. Phase difference between \(X_L\) and \(X_C\) is 90\(^\circ\)
B. Source frequency \(= \frac{1}{2\pi\sqrt{LC}}\)
C. Peak current acquires maximum value
D. Inductive reactance is equal in magnitude to Capacitive reactance.
E. The total impedance of the circuit is maximum Choose the correct answer from the options given below:
Choose the correct answer from the options given below:

The value of \(\lambda\) when the projection of \(\vec{a}=\lambda \hat{i}+\hat{j}+2 \sqrt{5} \hat{k}\) on \(\vec{b}=2 \hat{i}+4 \hat{j}+\sqrt{5} \hat{k}\) is 6 , is :