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#Question id: 19498


Which of the following pairs represents isobars?

#XL - P Chemistry
  1. 3He2 and 4He2
  2. 24Mg12 and 25Mg12
  3. 40K19 and 40Ca20
  4. 40K19 and 39K19

Answer:- Option(s): 3


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#Question id: 3792

#XL - Q Biochemistry

Strain introduced by unwinding DNA at the replication forks is relieved by

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#Question id: 3793

#XL - Q Biochemistry

A replicating prokaryotic chromosome has _________ replication forks, and a replicating eukaryotic chromosome has ___________.

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#Question id: 3794

#XL - Q Biochemistry

An input of energy is not required for which of the following steps of replication?

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#Question id: 3795

#XL - Q Biochemistry

The exonuclease activity of the DNA polymerases functions to:

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#Question id: 3796

#XL - Q Biochemistry

Incorrect pairing of bases during bacterial DNA replication occurs about once every 10^5 to 10^6 nucleotides, but the spontaneous mutation rate is only one error in 10^9 base pairs. What accounts for the difference?

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#Question id: 3797

#XL - Q Biochemistry

Throughout interphase, _______ are synthesized at a relatively constant rate, whereas _______ are synthesized only during the S phase.

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