Which component of the compound microscope aids in the collecting and focussing of light rays on the material to be examined?

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#Question id: 3255

#Part-A Aptitude & General Biotechnology

The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

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#Question id: 2644

#Part-A Aptitude & General Biotechnology

Which of these items have a positive impact on PEDCBA transcription?

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#Question id: 9597

#Part-B Specialized Branches in Biotechnology

The reaction centre bacteriochlorophyll from purple photosynthetic bacteria was similarly identified as-

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#Question id: 342

#Part-A Aptitude & General Biotechnology

In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ________.

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#Question id: 15596

#Part-B Specialized Branches in Biotechnology

To solve the equation 2 sin x = x by Newton-Raphson method, the initial guess was chosen to be x = 2.0. Consider x in radian only. The value of x (in radian) obtained after one iteration will be closest to