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Chapter 14: Q. 9 (page 367)

Meselson and Stahl's experiments proved that DNA replicates by which mode? a. conservative b. semi-conservative c. dispersive d. none of the above

Short Answer

Expert verified

Option b is correct.

Step by step solution

01

Step 1. Introduction

DNA replication refers to the process by which an organism makes a copy of its DNA and passed it on to daughter cells. Replication occurs before the cell division to ensure both cells receive exact copies of the genetic material of the parents.

02

Step 2. Explanation of the correct option

Option b is correct because DNA replication is bi-directional and has multiple Ori or origins of replication. it uses a semiconservative method for replication means double-stranded DNA with one parental strand and a new daughter strand.

03

Step 3. Explanation of the incorrect options

Option a is incorrect because DNA replication is semiconservative in nature instead of conservative.

Option c is incorrect because DNA replication is semiconservative in nature instead of dispersive.

Option d is incorrect because DNA replication is semiconservative in nature.

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Most popular questions from this chapter

Explain Griffith's transformation experiments. What did he conclude from them?

How did the scientific community learn that DNA replication takes place in a semi-conservative fashion?

Explain the events taking place at the replication fork. If the gene for helicase is mutated, what part of replication will be affected?

A scientist randomly mutates the DNA of a bacterium. She then sequences the bacterium’s daughter cells, and finds that the daughters have many errors in their replicated DNA. The parent bacterium likely acquired a mutation in which enzyme? a. DNA ligase b. DNA pol II c. Primase d. DNA pol I

DNA double helix does not have which of the following? a. antiparallel configuration b. complementary base pairing c. major and minor grooves d. uracil
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