In cell cycle, a mother cell divides into two daughter cells. The cell cycle mechanism is divided into four stages such as G 1 , S, G 2 , and M. G 1 , first gap phase within interphase, is also known as growth phase. During the G 1 phase, cell synthesizes proteins and produces more number of mitochondria and ribosomes and increases their size of growth. In the G 1 phase, cell synthesizes and accumulates materials needed for DNA replication in the upcoming phase. In the S phase, DNA replicates into two identical copies. In the G 2 phase, cell synthesizes proteins that control cell division and produces more organelles. It detects and repairs the replicated DNA sequence. After nuclear division, cell division has occurred. Two types of mechanisms are involved in cell division. They are mitosis and meiosis. Meiosis cell division occurs in egg and sperm cells. Mitosis is involved in the growth and repair of all somatic cells. Mitosis divides into prophase, metaphase, anaphase, and telophase in the eukaryotic cells. A division of the cytoplasm is known as cytokinesis, which occurs at the end of the mitosis.

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Chapter 4, Problem 19TYR

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In cell cycle, a mother cell divides into two daughter cells. The cell cycle mechanism is divided into four stages such as G₁, S, G₂, and M. G₁, first gap phase within interphase, is also known as growth phase. During the G₁ phase, cell synthesizes proteins and produces more number of mitochondria and ribosomes and increases their size of growth. In the G₁ phase, cell synthesizes and accumulates materials needed for DNA replication in the upcoming phase. In the S phase, DNA replicates into two identical copies. In the G₂ phase, cell synthesizes proteins that control cell division and produces more organelles. It detects and repairs the replicated DNA sequence. After nuclear division, cell division has occurred. Two types of mechanisms are involved in cell division. They are mitosis and meiosis. Meiosis cell division occurs in egg and sperm cells. Mitosis is involved in the growth and repair of all somatic cells. Mitosis divides into prophase, metaphase, anaphase, and telophase in the eukaryotic cells. A division of the cytoplasm is known as cytokinesis, which occurs at the end of the mitosis.

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