Practice Questions

TLS Online TPP Program

#Question id: 14829

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?

#SCPH06 I Botany

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: 10345

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

In Leaf Chloroplasts and root plastids contain different forms of the enzyme, nitrite reductase such as

a) Roots contain fd-dependent nitrite reductase

b) Shoots contain NADPH dependent nitrite reductase

c) Shoots contain fd-dependent nitrite reductase

d) Roots contain NADPH dependent nitrite reductase

Which one of the following is correct combination?

TLS Online TPP Program

#Question id: 5540

#SCPH06 I Botany

A new-born infant attains maternal antibodies from the mother's

TLS Online TPP Program

#Question id: 18666

#SCPH06 I Botany

The above figure shows where sample applied was 100 µg of total protein extracted from a normal dog heart ventricle. The first dimension was conducted using a pH 4–7 isoelectric focussing gel. The second dimension was a 12% SDS–PAGE vertical slab gel. The pattern was visualised by silver staining. Which of the following techniques is applied

TLS Online TPP Program

#Question id: 310

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

Ionic bonds easily form when electron when ionization energy of the metallic atom is _____ comparatively.

TLS Online TPP Program

#Question id: 13043

#SCPH28 | Zoology

In sanger’s sequencing chain termination is facilitated by: