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TLS Online TPP Program

#Question id: 10804

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?

#SCPH05 I Biotechnology
  1. A-i-b;  B-ii-c;  C-ii-d;  D-i-a;  E-i-e
  2. A-i-c;  B-ii-a;  C-i-e;  D-ii-d;  E-i-b
  3. A-ii-e;  B-i-d;  C-i-b;  D-ii-c;  E-i-a
  4. A-ii-d;  B-ii-e;  C-i-a;  D-ii-b;  E-i-c
More Questions
TLS Online TPP Program

#Question id: 4951

#SCPH06 I Botany

The synthesis of new DNA requires the prior existence of oligonucleotides to serve as primers. On Earth, these primers are small RNA molecules. This latter observation is evidence in support of the hypothesized existence of
TLS Online TPP Program

#Question id: 4951

#SCPH28 | Zoology

The synthesis of new DNA requires the prior existence of oligonucleotides to serve as primers. On Earth, these primers are small RNA molecules. This latter observation is evidence in support of the hypothesized existence of
TLS Online TPP Program

#Question id: 4952

#SCPH06 I Botany

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?
TLS Online TPP Program

#Question id: 4952

#SCPH28 | Zoology

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which of these questions is currently the most problematic and would have the greatest impact on our understanding if we were able to answer it?
TLS Online TPP Program

#Question id: 4953

#SCPH06 I Botany

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which graph below, if the results were produced abiotically, would have the greatest promise for revealing important information about the origin or Earthʹs first genetic system?
TLS Online TPP Program

#Question id: 4953

#SCPH28 | Zoology

Several scientific laboratories across the globe are involved in research concerning the origin of life on Earth. Which graph below, if the results were produced abiotically, would have the greatest promise for revealing important information about the origin or Earthʹs first genetic system?