Practice Questions

TLS Online TPP Program

#Question id: 563

Both water and glucose share an —OH that can serve as a substrate for a reaction with the terminal phosphate of ATP catalyzed by hexokinase. Glucose, however, is about a million times more reactive as a substrate than water. The best explanation is that:

#Section 2: General Biology

glucose has more —OH groups per molecule than does water.
the larger glucose binds better to the enzyme; it induces a conformational change in hexokinase that brings active-site amino acids into position for catalysis.
the —OH group of water is attached to an inhibitory H atom, while the glucose —OH group is attached to C.
water and the second substrate, ATP, compete for the active site resulting in a competitive inhibition of the enzyme.

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TLS Online TPP Program

#Question id: 15910

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

In HMM, transition probability is describes as

TLS Online TPP Program

#Question id: 15911

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Multiple sequence alignments are used to derive

TLS Online TPP Program

#Question id: 15912

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Match the items in Group 1 with an appropriate description in Group 2

Group 1 Group 2

P. PSI-BLAST 1. ungapped, aligned motif

Q. CLUSTALW 2. Profiles

R. BLOCK 3. Heuristic method

S. FASTA 4. Multiple sequence alignment

TLS Online TPP Program

#Question id: 15913

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

The Smith-Waterman algorithm was developed for

TLS Online TPP Program

#Question id: 15914

#Section 6: Plant, Animal and Microbial Biotechnology

What is animal tissue culture?

TLS Online TPP Program

#Question id: 15915

#Section 6: Plant, Animal and Microbial Biotechnology

Culture freshly prepared from isolated tissue is known as _____