The elucidation of the lac operon was the result of close association between the geneticist ______ and the biochemist ______.

Which of the following statement is FALSE in relation to colour blindness?

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:

Inactive protoxins is converted into its active toxin by:

Identify the correct statements with respect to microbes.
A. 'Toddy' the traditional drink obtained by fermenting sap of Palm tree.
B. Swiss cheese's large holes are due to activity of Saccharomyces cerevisae.
C. 'Penicillin' was discovered by Alexander Fleming.
D. The Cyclosporin A, is produced by Trichoderma polysporum.
Choose the the correct answer from the options given below:

What kind of immunity is provided to the infant by colostrum?

Which vector is used for introducing nematode specific genes into the tobacco host plant.

Let us consider interference between two sources of intensities \( I \) and \( 4I \). What will be the intensity at points where the phase difference is \( \pi \) ?

Match List-l with List-ll

List-l (Structures)	List-II (Features)
(A). Infundibulum	(I). Helps in collection of the ovum after ovulation
(B). Zona pellucida	(II). Finger-like structures above labia minora
(C). Fimbriae	(III). Membrane of secondary oocyte
(D). Clitoris	(IV). Funnel-shaped structure near ovary

Choose the correct answer from the options given below:

Read the following passage carefully and answer the given questions. During anaerobic sludge digestion, bacteria produce a mixture of gases such as methane, hydrogen sulphide and carbon dioxide. These gases form biogas and can be used as source of energy as it is inflammable. The bioactive molecule, cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by the fungus Trichoderma polysporum. You must have noticed that bottled fruit juices bought from the market are clearer as compared to those made at home. This is because the bottled juices are clarified by the use of pectinases and proteases. 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. The BOD test measures the rate of uptake of oxygen by microorganisms in a sample of water and thus, indirectly, BOD is a measure of the organic matter present in the water.
Cyclosporin A, that is used as an immunosuppressive agent in organ-transplant patients, is produced by -

Which is not an application of Total Internal Reflection:

Ultraviolet radiations of 6.2 eV are incident on an aluminum surface of work function 4.2 eV. The maximum kinetic energy of the emitted electrons is

A molecule X associates in a given solvent as per the following equation: \(X \rightleftharpoons(X) n\). For a given concentration of \(X\), the van't Hoff factor was found to be \(0 . 8 0\), and the fraction of associated molecules was \(0 . 3\). The correct value of ' \(n\) ' is: