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?

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#Question id: 3318

#Section 3: Genetics, Cellular and Molecular Biology

When members of a metal- torerant and metal sensitive species that initially occupied the same habitat within the same range diverge into two species due to starting to show a change in their flowering season. This process known as

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#Question id: 14285

#Section 5: Bioprocess Engineering and Process Biotechnology

Match the transport process with appropriate time constants given below 

Transport process                       time constants

1. Oxygen transfer                     p. V/Q

2. Heat transfer                      q. 4V(1.5ND3)

3. Flow                                     r. VpCp/UA

4. Mixing                              s. 1/KLa 

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#Question id: 18686

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

Homology modeling may be distinguished from ab initio prediction because: 

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#Question id: 4902

#Section 3: Genetics, Cellular and Molecular Biology

Leber hereditary optic neuropathy (LHON) is mitochondrial diseases present in family. Which of the following observation is correct?