Ultraviolet (UV) radiation around 260 nm is quite lethal but does not penetrate

1. glass 

2. dirt films 

3. Water

March the correct answer

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#Question id: 3759

#Section 3: Genetics, Cellular and Molecular Biology

In E. coli, to repair a thymine dimer by nucleotide excision repair, in which order do the necessary enzymes act?

TLS Online TPP Program

#Question id: 16032

#Section 6: Plant, Animal and Microbial Biotechnology

The major problem associated with the isolation of free cells and cell aggregates from organs is that of

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#Question id: 384

#Section 4: Fundamentals of Biological Engineering

A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).

TLS Online TPP Program

#Question id: 16017

#Section 6: Plant, Animal and Microbial Biotechnology

The human fibroplast is a classical example of

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#Question id: 1978

#Section 2: General Biology

In which of the following situations will helper T cells be activated?