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TLS Online TPP Program

#Question id: 2861

What is the result of regulatory mutation in given lac operon in merodiploids

#Unit 2. Cellular Organization

  1. Both lac operons repressible, mutation is recessive

  2. One lac operon nonrepressible, mutation is cis-dominant

  3. Both lac operons uninducible, mutation is trans-dominant

  4. One lac operon nonrepressible, mutation is  trans-negative

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TLS Online TPP Program

#Question id: 556

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following statement is correct to calculate the turnover number of an enzyme,

A) the enzyme concentration.

B) the initial velocity of the catalyzed reaction at [S] >> Km.

C) the initial velocity of the catalyzed reaction at low [S].

D) the Km for the substrate.
TLS Online TPP Program

#Question id: 20277

#Unit 7. System Physiology – Animal

Which is structurally similar to growth hormone?
a. Prolactin
b. Lactogen
c. Dopamine 
d. Bromocriptine
Which of the above is/are correct? 
TLS Online TPP Program

#Question id: 2672

#Unit 2. Cellular Organization

What is the name of the stretch of DNA where RNA polymerase binds?
TLS Online TPP Program

#Question id: 10212

#Unit 6. System Physiology – Plant

Which of the following mechanism is not involve in phtoprotection to plants?
TLS Online TPP Program

#Question id: 789

#Unit 1. Molecules and their Interaction Relevant to Biology

Presence of large numbers of modified specially methylated nucleotides in tRNA contribute in