The greatest biodiversity on the earth is seen in :

In RNA interference method, nematode specific genes were introduced into the host plant which produce _________

In gel electrophoresis the separated DNA fragments can be visualised:

In the following, the sex linked recessive disorder is.

Read the passage carefully and give the answers to the question :
Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species. According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
Among the vertebrates, which of the following is the most species-rich group ?

Match List - I with List - II.

LIST I	LIST II
(A) Metabolic Disorder	(I) Family tree over generation
(B) Pedigree analysis	(II) Blood disease
(C) Thalassemia	(III) Phenylketonuria
(D) Trisomy of 21st chromosome	(IV) Down's Syndrome

Choose the correct answer from the options given below:

Select the mendelian disorders from the following:
(A) Thalassemia
(B) Turner's Syndrome
(C) Cystic Fibrosis
(D) Sickle cell anaemia
Choose the correct answer from the option s given below:

Which one of the following characteristics of the transition metals is associated with their catalytic property/activity?

Which of the following statements are correct?
(A) A lion eating a deer and a sparrow feeding on grains are ecologically similar consumers.
(B) Predator star fish Pisaster helps in maintaining the species diversity of some invertebrates.
(C) Predators ultimately lead to the extinction of prey species.
(D) Production of chemicals such as nicotine and strychnine by the plants are metabolic disorders.
Choose the correct answer from the options given below:

If A and B are independent events and \(P(A)=\frac{3}{5}, P(B)=\frac{1}{5}\), then \(P(A \cap B)\) is :

Identify the given name reaction :
\(R-NH_2+CHCl_3+3 KOH \xrightarrow{\text { Heat }} R-NC+3 KCl+3H_2 O\)

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 one of the given approaches is used when the animals and plants are endangered?