TLS Online TPP Program

#Question id: 3780


If a cell were unable to produce histone proteins, which of the following results would be a likely effect on the cell?

#Section 3: Genetics, Cellular and Molecular Biology
  1. There would be an increase in the amount of DNA produced during replication.

  2. The cell's DNA could not be packed into its nucleus.

  3. Spindle fibers would not form during prophase.

  4. Amplification of other genes would compensate for the lack of histones.

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TLS Online TPP Program

#Question id: 3688

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following enzyme has a unique ability to introduce positive and negative supercoiling of the DNA and it is the target for antibacterial agents such as ciprofloxacin/quinolones?

TLS Online TPP Program

#Question id: 3689

#Section 3: Genetics, Cellular and Molecular Biology

DNA replication is bidirectional and anti-parallel. Which of the statement is FALSE regarding the DNA replication?

TLS Online TPP Program

#Question id: 3690

#Section 3: Genetics, Cellular and Molecular Biology

The DNA polymerase is a template-directed enzyme that synthesizes new complementary strand from a parent strand but it requires the existing short nucleotide sequence for its elongation. Which of the following enzyme is required for the synthesis of this primer?

TLS Online TPP Program

#Question id: 3691

#Section 3: Genetics, Cellular and Molecular Biology

 DNA polymerase III holoenzyme possesses:

TLS Online TPP Program

#Question id: 3692

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following statement is true regarding an enzyme DNA polymerase that catalyzes the elongation of complementary DNA strand?

TLS Online TPP Program

#Question id: 3693

#Section 3: Genetics, Cellular and Molecular Biology

In prokaryotes, the RNA primer from the lagging strand is removed and replaced by the DNA sequence. This process is catalyzed by an enzyme ________ which possess 5'-3' exonuclease activity and 5'-3' polymerase activity.