Arrange the stages of oogenesis in order of their occurance.
(A) Formation of ovum & IInd polar body
(B) Meiosis II begins but held at Metaphase II
(C) Meiosis I started but held at Prophase I
(D) Formation of primary oocyte from oogonia
(E) Completion of Meiosis-I and formation of secondary oocyte and first polar body
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Sex determination in grasshopper is of -

The early embryos with upto 8 blastomeres are transferred into the fallopian tube in one of the assisted reproductive technologies (ART). Identify the technique.

RNA polymerase III is responsible for the transcription of:

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.
During anaerobic sludge digestion, bacteria produce the biogas. The composition of this biogas is -

Which of the following is a start codon?

Read the passage carefully and answer the questions based on the passage:
Species diversity on earth is not uniformly distributed. It is generally highest in the tropics and decreases towards the poles. Earth's fossil history reveals the incidences of mass extinctions in the past. Earth's rich biodiversity is vital for the very survival of mankind. It is believed that communities with high diversity tend to be less variable and more productive. The reasons of conserving biodiversity are narrowly utilitarian, broadly utilitarian and ethical. Biodiversity conservation may be in-situ as well as ex-situ.
Which one of the following does not exhibit narrowly utilitarian argument for conserving biodiversity?

Bulb B1 is a 50 W bulb working on 100 V and Bulb B2 is a 200 W bulb also working on 100 V. The ratio of resistances of bulbs B1 to B2 is:

Match List-I with List-II (where \(c\) is an arbitrary constant)

List-I (Definite integral)	List-II (Value)
(A) \(\int_1^e \frac{\log x}{x} d x\)	(I) 4
(B) \(\int_{-2}^2 x^3\left(1-x^2\right) d x\)	(II) \(\frac{1}{2}\)
(C) \(\int_1^2 x d x\)	(III) \(0\)
(D) \(\int_{-2}^2|x| d x\)	(IV) \(\frac{3}{2}\)

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In an ecosystem

Ex-situ conservation method does not include:
(A) Cryopreservation
(B) National park
(C) Zoological park
(D) Sacred groves
Choose the correct answer from the options given below:

Which of the following statements is/are correct?
(A) \(|x|\) is continuous everywhere in its domain.
\((B)|x|\) is differentiable everywhere in its domain.
(C) \([x]\) is continuous at every integral point.
\((D)[x]\) is discontinuous at every integral point.
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Answer the question on the basis of passage given below :
Adsorption is a surface phenomenon and it differs from absorption which occurs throughout the body of the substance that absorbs. In physiosorption the attractive forces are mainly van der Waal's forces while in chemisorption ionic/covalent bonds are formed between particles of adsorbent and adsorbate. The catalytic activity of finely divided iron in Haber's process of ammonia manufacture can be explained by adsorption theory. Adsorption being an exothermic process, the heat of adsorption is utilised in enhancing the rate of the reaction. Adsorption has many applications being used in gas masks, control of humidity, chromatograph separation, curing diseases etc.
Chromatography is based on: