Practice Questions

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

A-i-b; B-ii-c; C-ii-d; D-i-a; E-i-e
A-i-c; B-ii-a; C-i-e; D-ii-d; E-i-b
A-ii-e; B-i-d; C-i-b; D-ii-c; E-i-a
A-ii-d; B-ii-e; C-i-a; D-ii-b; E-i-c

More Questions

TLS Online TPP Program

#Question id: 15488

#SCPH05 I Biotechnology

IMP biosynthetic genes constitute the pur operon and are involved in Purines synthesis. Bacterial strain used for this

TLS Online TPP Program

#Question id: 359

#SCPH06 I Botany

What is the concentration of OH− in a solution with an H+ concentration of 1.3 × 10^−4 M?

TLS Online TPP Program

#Question id: 27163

#SCPH01 Biochemistry

which of the following database contains the information of regular expressions

TLS Online TPP Program

#Question id: 19626

#SCPH05 I Biotechnology

The pH of a solution of hydrochloric acid is 4. The molarity of the solution is:

TLS Online TPP Program

#Question id: 3274

#SCPH28 | Zoology

The common edible frog of Europe is a hybrid between two species, Rana lessonae and Rana ridibunda. The hybrids were first described in 1758 and have a wide distribution, from France across central Europe to Russia. Both male and female hybrids exist, but when they mate among themselves, they are rarely successful in producing offspring. What can you infer from this information?