Practice Questions

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#Question id: 1035

A new drug is developed that inhibits formation of the flagellar filament by impairing production of the protein flagellin. Is this going to be a good drug?

#SCPH28 | Zoology

Potentially-it would definitely only impair bacteria, but wouldn't matter for the ones that don't use a flagellum to move around.
Potentially-if it could be shown that it also didn't impair the production of the eukaryotic flagellum.
No-our eukaryotic cells depend on flagella to move around in our body, and this would impair that function.
No-bacterial flagella are produced using microtubules, not the protein flagellin. This drug would be useless in eliminating bacteria.

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TLS Online TPP Program

#Question id: 16074

#SCPH05 I 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: 6947

#SCPH28 | Zoology

What is the correct dorso-ventral arrangement seen in a cross-section of Drosophila embryo?

TLS Online TPP Program

#Question id: 818

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

Which one of the following weak interactions have central features of protein structures, but makes only minor contributions to protein stability?

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#Question id: 351

#SCPH01 Biochemistry

If the cytoplasm of a cell is at pH 7, and the mitochondrial matrix is at pH 8, then the concentration of H+ ions ________.

TLS Online TPP Program

#Question id: 15733

#SCPH28 | Zoology

Embryo culture technique is applied to

1. Overcome seed dormancy

2. Prevention of embryo abortion in wide crosses

3. Formation of protoplast

4. Shortening of breeding cycle

Which option has incorrect statement