When syngamy occurs inside the body of an organism, it is known as:

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In our body, cell growth and differentiation is highly controlled and regulated. In cancer cells, there is breakdown of these regulatory mechanisms. Cancerous cells just continue to divide giving rise to masses of cells called tumors. Benign tumors normally remain confined to their original location. The malignant tumors, on the other hand are a mass of proliferating cells. These cells actively divide and starve the normal cells by competing for vital nutrients. Cells sloughed from such tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property is called metastasis. Transformation of normal cells into cancerous cells may be induced by physical, chemical or biological agents called carcinogens.
The statement which is correct for cancer cells:

Which of the following term refers to the confinement of the species to a specific area and also the same species are not found anywhere else?

Which one of the following organization is set by the Indian Government for making decisions regarding the validity of GM research and the safety of introducing GM-organisms for public services.?

Arrange the given steps of DNA fingerprinting in sequence.
(A) Transferring of separated DNA fragments on nitrocellulose membrane
(B) Isolation of DNA and digestion by restriction endonuclease
(C) Hybridisation using VNTR Probe
(D) Separation of isolated DNA fragments by Gel Electrophoresis
Choose the correct answer from the options given below :

Threatened animals and plants are taken out from their natural habitat and placed in special settings, protected and given special care is.

Silencing of mRNA has been used in producing transgenic plants which are resistant to:

Which of the following is a complementary sequence of 5' GAATTC ---- 3'?

Neutral or weakly alkaline \(KMnO_4\) solution will oxidise iodide ion into :

Identify the correct statement with respect to Mycorrhiza.
A. Fungal symbiont absorbs phosphorus from the soil and passes it on to the roots of the plant.
B. Many members of the genus Glomus form mycorrhiza.
C. In paddy fields, mycorrhiza serve as an important biofertilizer.
D. Plants with mycorrhiza show tolerance to salinity and drought.
Choose the correct answer from the options given below:

The area of the region bounded by the curve y = x + 1, x-axis and the lines x = 2 and x = 3 is

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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.
The following are the various hypotheses proposed in explaining the greatest biological diversity in tropics except :

A conducting circular loop is placed in a uniform magnetic field of \( B = 0.5 \text{ T} \), with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at the rate of \( \frac{dr}{dt} = 4 \text{ mm/s} \). When the radius of the loop is \( r = 4 \text{ cm} \), the induced emf in the loop is