Summary
DNA replication occurs during interphase, prior to prophase. During prophase, the replicated DNA condenses and forms visible, individual chromosomes, with two copies of each chromosome present in the cell.
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The chromosomes then attach to centrosomes on opposite ends of the cell in metaphase, and separate into genetically-identical daughter chromosomes during anaphase.
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Finally, the daughter chromosomes get their own individual nuclear membranes in telophase.
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Summary
The cell cycle is a series of growth and development steps a cell undergoes between its formation and reproduction, divided into two major phases: interphase and mitosis (or the mitotic (M) phase). Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase, and is characterized by the formation of a spindle, nuclear membrane, and nucleolus. Cancer is a disease of uncontrolled cell growth, and it is caused by a combination of genetic and environmental factors.
The cell cycle and mitosis review (article) | Khan Academy
khanacademy.org
Summary
The cell cycle is a series of developmental steps that a cell goes through between its "birth" (formation by the division of a mother cell) and its "reproduction" (division to make two new daughter cells. It is divided into two major phases: interphase (G1, S, and G2), followed by the mitotic phase (mitosis and cytokinesis) and G0 phase. During the mitotic phase, the cell separates its DNA into two sets and divides its cytoplasm, forming two new cells.
Phases of the cell cycle (article) | Khan Academy
khanacademy.org
Summary
During prophase, that loose chromatin condenses and forms into visible, individual chromosomes.
Since each of the parent cell’s chromosomes were replicated during interphase, there are two copies of each chromosome in the cell during prophase.
The 4 Mitosis Phases: Prophase, Metaphase, Anaphase, Telophase
prepscholar.com
Replication and Distribution of DNA during Meiosis Like mitosis, meiosis is a form of eukaryotic cell division. However, these two processes distribute genetic material among the resulting ...
Replication and Distribution of DNA during Meiosis
nature.com
As no DNA replication takes place in this second step of meiosis, the cell division process immediately begins. Prophase II prepares the cell for secondary meiotic division where two haploid…
Prophase II | Biology Dictionary
biologydictionary.net
2. DNA containing structures which condense during prophase. chromatin 3. These RNA structures disappear when chromosomes appear. nucleoli 4. These structures act as focal points for the appearance of the…
Week 2: DNA Replication & Mitosis Flashcards | Quizlet
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