CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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DNA replication is needed for ____
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mitosis only
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meiosis
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mitosis & meiosis
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either mitosis or meiosis depending on the type of cell.
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Explanation:
Detailed explanation-1: -In both mitosis and meiosis the replication of DNA and chromosomes occurs at the same stage.
Detailed explanation-2: -Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
Detailed explanation-3: -Meiosis begins with DNA replication, followed by a pairing of the maternal and paternal chromosomes (homologous pairing) and an exchange of genetic material between chromosomes by recombination (Fig. 1.1. 5).
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