CELL STRUCTURES AND FUNCTION
CELL DIVISION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cells are at rest before the active division phase starts
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The cells are producing more nuclei
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The cells are synthesizing DNA, RNA, and proteins
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The cells all go into G0 phase and withdraw from the cell cycle
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Detailed explanation-1: -During interphase, the cell grows and makes a copy of its DNA. During the mitotic (M) phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
Detailed explanation-2: -The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
Detailed explanation-3: -The interphase is comprised of first growth phase or G1 phase, synthesis phase or S phase and second growth phase or G2 phase. In G1 phase, there is synthesis of RNA, enzymes, proteins, amino acids for histone formation, formation of nucleotides and ATP.
Detailed explanation-4: -The cell grows at a steady rate throughout interphase, with most dividing cells doubling in size between one mitosis and the next. In contrast, DNA is synthesized during only a portion of interphase.
Detailed explanation-5: -Series of events in which a cell grows and divides is known as the cell cycle. It includes interphase, G1 phase, S phase, G2 phase, M phase. During interphase, RNA and proteins are synthesized in G1 phase.