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TLS Online TPP Program

#Question id: 18733

Topoisomerase is also an enzyme which is used for carrying out ligation. The correct statement for topoisomerase is?

#Unit 13. Methods in Biology
  1. They act only on double stranded molecules
  2. They alter the degree of supercoiling of DNA molecules
  3. They are less effective than conventional DNA ligase
  4. There are three types of topoisomerases
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TLS Online TPP Program

#Question id: 32407

#Unit 1. Molecules and their Interaction Relevant to Biology

Deuterated acetyl-coenzyme A (-CD3 instead of –CH3) was used in an experiment to study the TCA cycle. Upon analysis of the metabolites, it was found that deuterium (D) was present in a wide variety of compounds; even compounds not associated with the citric acid cycle. This is due to
TLS Online TPP Program

#Question id: 11485

#Unit 7. System Physiology – Animal

In the odorant cells of mammals, specific odorants are detected by binding to _______
TLS Online TPP Program

#Question id: 28081

#Unit 6. System Physiology – Plant

In the phenomenon of transfer of electron in photosystem have various time order

(a) Splitting of H2O – 1ms

(b) Transfer of electron from Mn – Z – in Microseconds 

(c) Transfer of electron from Z – P680 – in Nanosecond 

(d) 1st photochemistry - picoseconds

Which of the following is correct
TLS Online TPP Program

#Question id: 2564

#Unit 2. Cellular Organization

A cell with a predominance of rough endoplasmic reticulum is most likely ________.
TLS Online TPP Program

#Question id: 4495

#Unit 3. Fundamental Processes

_ elements can block this spreading, protect genes from both indiscriminate activation and repression.