TLS Online TPP Program

#Question id: 1675


Somatic hypermutation of V genes:

#SCPH05 I Biotechnology
  1. Is confined to the hypervariable regions

  2. Involves heavy but not light chain immunoglobulin V genes

  3. Does not occur in IgM antibodies

  4. Can decrease the affinity of an antibody

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TLS Online TPP Program

#Question id: 10803

#I Life Science/ Life Sciences Group – I-V

Which of the following are not consider as nitrogen-containing secondary metabolites?

TLS Online TPP Program

#Question id: 10803

#SCPH05 I Biotechnology

Which of the following are not consider as nitrogen-containing secondary metabolites?

TLS Online TPP Program

#Question id: 10804

#I Life Science/ Life Sciences Group – I-V

Major types of alkaloids, their amino acid precursors, and well-known examples of each type;

Alkaloid class

Biosynthetic precursor

Examples

A. Pyrrolidine

i. Lysine

a. Coniine

B. Tropane

ii. Ornithine

b. Retrorsine

C. Piperidine

 

c. Lupinine

D. Pyrrolizidine

 

d. Nicotine

E. Quinolizidine

 

e. Atropine and Cocaine

Which of the following combination from the given table is correct?

TLS Online TPP Program

#Question id: 10804

#SCPH05 I Biotechnology

Major types of alkaloids, their amino acid precursors, and well-known examples of each type;

Alkaloid class

Biosynthetic precursor

Examples

A. Pyrrolidine

i. Lysine

a. Coniine

B. Tropane

ii. Ornithine

b. Retrorsine

C. Piperidine

 

c. Lupinine

D. Pyrrolizidine

 

d. Nicotine

E. Quinolizidine

 

e. Atropine and Cocaine

Which of the following combination from the given table is correct?

TLS Online TPP Program

#Question id: 10805

#SCPH05 I Biotechnology

Breakdown of cyanogenic glycosides in plants is a two-step enzymatic process, the enzymes necessary to hydrolyze the sugar and liberate HCN is

TLS Online TPP Program

#Question id: 10806

#SCPH05 I Biotechnology

HCN is a fast-acting toxin that inhibits