Practice Questions

TLS Online TPP Program

#Question id: 10144

Choose the incorrect statements about photosynthesis dark reaction ?

#Unit 6. System Physiology – Plant

The light dependent enzymes which are activated by Ferredoxin–thioredoxin system, contain oxidised di-sulfide bonds (—S—S—) in its active form
C3 cycle or Calvin–Benson cycle is regulated by Photosystem I
The activation of enzymes of the Calvin– Benson cycle starts in the light with the reduction of ferredoxin by the photosynthetic electron transport chain (Chl)
The series of Ferredoxin–thioredoxin system in presence of light is, 2 Ferredoxin (oxidized) to 2 Ferredoxin (reduced)→ Trx(s−s) to Trx(SH) → Ferredoxin– thioredoxin reductase (s−s) to Ferredoxin– thioredoxin reductase(SH)→ Enzyme (inactive)(s−s) to Enzyme (active)(SH)

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TLS Online TPP Program

#Question id: 31321

#Unit 13. Methods in Biology

Generating a library for 140 kb eukaryotic genomic DNA fragments, while giving due consideration to size as well as stability of insert?

TLS Online TPP Program

#Question id: 13124

#Unit 10. Ecological Principles

A recent study of ecological footprints concluded that

TLS Online TPP Program

#Question id: 34087

#Unit 3. Fundamental Processes

A DNA containing which an origin of replication undergoing to initiation of replication and further, is digested with restriction endonuclease. Which shape of DNA segment can be found after digestion followed electrophoresis.

A. Y Shape B. Bubble shape C. bubble-to-Y-arc D. Circular

TLS Online TPP Program

#Question id: 18960

#Unit 13. Methods in Biology

cDNA library do not require very large vectors hence which of the following is commonly used in cDNA library

TLS Online TPP Program

#Question id: 1580

#Unit 4. Cell Communication and Cell Signaling

Advantages of Toxoid (inactivated exotoxin) can be