TLS Online TPP Program

#Question id: 4132


In E. coli, aminoacyl-tRNA synthetases:

#SCPH06 I Botany
  1. activate amino acids in 12 steps

  2. are amino acid–specific; there is at least one enzyme specific for each amino acid.

  3. fall into two classes, each of which attaches amino acids to different ends of the tRNA.

  4. have no proofreading activities.

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TLS Online TPP Program

#Question id: 14776

#SCPH06 I Botany

A single letter is selected at random from the word “PROBABILITY”. The probability that it is a vowel is

TLS Online TPP Program

#Question id: 5349

#SCPH28 | Zoology

The following is the inheritance pattern of a trait under observation:

(i) The trait often follow cris cross inheritance 

(iii) Unaffected father born to affected daughter

The trait is likely to be

TLS Online TPP Program

#Question id: 18886

#SCPH01 Biochemistry

What type of microscopy allows for the visualization of internal components within live, unstained specimens?

TLS Online TPP Program

#Question id: 13199

#SCPH05 I Biotechnology

The non-reducing sugar sucrose is most commonly translocated in the phloem rather than reducing sugar. Why?
a.) because they are less reactive than their reducing counterparts
b.) because sucrose contains more energy than a monosaccharides
c.) because the ketone or aldehyde group is reduced to an alcohol or combined with a similar group on another sugar so as not to be oxidized 
Which one of the following statements is true about translocation of non-reducing sugar?

TLS Online TPP Program

#Question id: 19126

#SCPH06 I Botany

A successful biosensor must have some of the following features such as.
1. Should be highly specific for the analyte 
2. Reaction used should be independent of factors like stirring, pH, temperature, etc. 
3. Response should be linear over a useful range of analyte concentrations
Which of the following above statements are correct?