Practice Questions

TLS Online TPP Program

#Question id: 19841

Which of the following is true regarding Reverse transcriptase ?

#Part-A Aptitude & General Biotechnology

is used to proch1ce cDNA (complementary DNA) copies of, usually, mRNA that are used for creation of cDNA libraries
for removing 5' -phosphate from DNA ends.
for addition of phosphate group to an end having a free 5'-0H.
for removal of single-stranded protrusions from ends; both 3'- and 5'-extensions are removed.

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TLS Online TPP Program

#Question id: 19457

#Part-B Specialized Branches in Biotechnology

Which microscopy can be used for viewing live cells and unstained tissues?

1. Fluorescence microscopy

2. Phase contrast microscopy

3. Dark field microscopy

4. Differential interference microscopy

5. Confocal microscopy

Which of the above combinations of microscopy is correct?

TLS Online TPP Program

#Question id: 14151

#Part-A Aptitude & General Biotechnology

Which of the following statement is true?

A) PAM matrices are derived from an evolutionary model whereas the BLOSUM matrices consist of entirely direct observations.

B) Because of BLOSUM matrices have less evolutionary meaning that is why the PAM matrices are used most often for reconstructing phylogenetic trees.

C) BLOSUM matrices are entirely derived from local sequence alignments of conserved sequence blocks, whereas the PAM matrix is based on the global alignment of full-length sequences.

D) BLOSUM matrices are more advantageous in searching databases and finding conserved domains in proteins.

TLS Online TPP Program

#Question id: 11863

#Part-A Aptitude & General Biotechnology

The product of two co-prime numbers is 117. Then their LCM is

TLS Online TPP Program

#Question id: 18659

#Part-A Aptitude & General Biotechnology

Which of the following is true about for the fundamental of IEF

TLS Online TPP Program

#Question id: 11592

#Part-B Specialized Branches in Biotechnology

Gibberellin biosynthesis precursor is____