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vaieri [72.5K]
3 years ago
8

Proposed mode of DNA replication where one daughter cells gets both strands of parent DNA and the other daughter cell gets both

strands of new DNA.
a. Bi-directional replication
b. Dispersive replication
c. Conservative replication
d. Semiconservative replication
Biology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

c. Conservative replication

Explanation:

  • In conservative mode of replication, the parent DNA molecule will direct the synthesis of entirely new DNA molecule. Hence, one daughter cell will get the old  DNA with both parental strands and the other daughter cell will get the new DNA with both new strands.
  • But the widely accepted replication model is semi conservative model. Where both the strands separate and act as template for new strands. Hence, the new DNA molecules will have one parental DNA strand and one new DNA strand.
  • According to dispersive replication model, the newly synthesized DNA randomly gets fragments of parental DNA.

Hence, the answer is conservative replication.

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Answer:

The correct answer is option - e. all of the above are useful traits.

Explanation:

A cloning vector is a small segment of DNA that can be established stably in an individual organism and able to internalize a foreign DNA for cloning purposes. The cloning vector could be taken from different organisms such as plasmid of a bacterium, or DNA from a virus. A cloning vector must possess some characteristics -  

The cloning vector must be self-replicating ability in the host cells, it should be small in size with restriction site for the restriction endonuclease enzymes in it. The replication character of the vector should not interfere with the internalized DNA fragment. The presence of marker genes in the vector is also a property that is helpful in identifying of recombinant cells.

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