PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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two copies of the original cell’s DNA
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an identical copy of the original cell’s DNA
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a rearranged copy of the original cell’s DNA
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only the best parts of the original cell’s DNA
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Detailed explanation-1: -Once a cell has replicated its organelles, it needs to replicate its DNA. This brings the cell to the synthesis phase (S) of its life. During this time, the DNA within the nucleus is replicated to create 2 identical copies of the genome.
Detailed explanation-2: -The specific steps for DNA replication are included in the DNA itself. To do this duplication, your cells rely on the nucleotides that make up your DNA molecule, along with some helper molecules like DNA polymerase and DNA helicase. Nucleotides in your DNA are composed of: A phosphate group.
Detailed explanation-3: -DNA replication is the process by which the genome’s DNA is copied in cells. Before a cell divides, it must first copy (or replicate) its entire genome so that each resulting daughter cell ends up with its own complete genome.