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Multiple Choice
Which of the following best describes cloning in the context of DNA-based technology?
A
The method of sequencing the entire genome of an organism.
B
The process of creating genetically identical copies of a DNA fragment, cell, or organism.
C
The technique of introducing foreign DNA into a host organism to express a new trait.
D
The process of amplifying a specific DNA segment using polymerase chain reaction (PCR).
Verified step by step guidance
1
Step 1: Understand the concept of cloning in the context of DNA-based technology. Cloning refers to the process of creating genetically identical copies of a DNA fragment, cell, or organism. This is distinct from other techniques like genome sequencing, PCR, or introducing foreign DNA into a host organism.
Step 2: Compare cloning with genome sequencing. Genome sequencing involves determining the complete DNA sequence of an organism's genome, which is not the same as creating identical copies.
Step 3: Differentiate cloning from PCR. PCR (Polymerase Chain Reaction) is a technique used to amplify a specific DNA segment, but it does not create genetically identical copies of an entire organism or cell.
Step 4: Contrast cloning with introducing foreign DNA into a host organism. This technique, often used in genetic engineering, involves expressing new traits by inserting foreign DNA, which is different from cloning.
Step 5: Conclude that cloning specifically refers to the process of creating genetically identical copies, which is the correct description in the context of DNA-based technology.