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TLS Online TPP Program

#Question id: 3763

What is the function of the enzyme topoisomerase in DNA replication?

#XL - Q Biochemistry

  1. relieving strain in the DNA ahead of the replication fork caused by the untwisting of the double helix

  2. elongating new DNA at a replication fork by adding nucleotides to the existing chain

  3. reattaching the hydrogen bonds between the base pairs in the double helix

  4. building RNA primers using the parental DNA strand as a template

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TLS Online TPP Program

#Question id: 3929

#XL - Q Biochemistry

The product of the lacZ gene is __.
TLS Online TPP Program

#Question id: 1089

#XL - Q Biochemistry

Which of the following statements describes a likely effect of a drug designed that inhibits the cellular response to testosterone?
TLS Online TPP Program

#Question id: 1095

#XL - Q Biochemistry

What does it mean to say that a signal is transduced?
TLS Online TPP Program

#Question id: 16855

#General Aptitude

He ……… (write) to me every month.
TLS Online TPP Program

#Question id: 20170

#XL - P Chemistry

The first emission line in the atomic spectrum of hydrogen in the Balmer series appears at