A copy of the gene encoding enzyme, which is the rate-limiting enzyme in the normal tryptophan biosynthetic pathway is,

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#Question id: 12791

#Unit 10. Ecological Principles

Of the following pairs, which are the main decomposers in a terrestrial ecosystem? 

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#Question id: 1634

#Unit 4. Cell Communication and Cell Signaling

What is the main reason an experimental animal treated with X-rays can act as a living test tube for lymphocyte transfer experiments?

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#Question id: 15952

#Unit 12. Applied Biology

Somatic embryogenesis defined as;

I) SE induction occurs on high auxin

II) SE development takes place on a low auxin or GR-free medium

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#Question id: 33472

#Unit 2. Cellular Organization

Find correct True and False statements

A. Human females have 23 different chromosomes, whereas human males have 24.

B. In the living cell, chromatin usually adopts the extended “beads-on-astring” form.

C. The four core histones are relatively small proteins with a very high proportion of positively charged amino acids; the positive charge helps the histones bind tightly to DNA, regardless of its nucleotide sequence.

D. Nucleosomes bind DNA so tightly that they cannot move from the positions where they are first assembled.

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#Question id: 7530

#General Aptitude

Two trains are moving in opposite directions at 72 km per hour and 90 km per hour . Their lengths are 500 m and 400 m respectively. the time taken by the Slower train to cross the faster train is