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Questions and Answers
Which phase of the cell cycle is characterized by DNA replication?
Which phase of the cell cycle is characterized by DNA replication?
- S phase (correct)
- M phase
- G1 phase
- G2 phase
What is the primary difference between somatic cells and gametes?
What is the primary difference between somatic cells and gametes?
- Somatic cells are formed during fertilization, while gametes are formed during cleavage.
- Somatic cells undergo meiosis, while gametes undergo mitosis.
- Somatic cells are always non-dividing, while gametes are always dividing.
- Somatic cells are diploid, while gametes are haploid. (correct)
In which phase of meiosis do homologous chromosomes undergo crossing over?
In which phase of meiosis do homologous chromosomes undergo crossing over?
- Prophase I (correct)
- Metaphase II
- Anaphase I
- Telophase II
Which structure is responsible for pulling chromatids apart during mitosis?
Which structure is responsible for pulling chromatids apart during mitosis?
What occurs during cytokinesis in plant cells?
What occurs during cytokinesis in plant cells?
Flashcards
Mitosis
Mitosis
The shortest phase of the cell cycle, during which the cell divides its nucleus into two daughter nuclei.
Interphase
Interphase
The phase of the cell cycle in which the cell grows and copies its DNA.
Cytokinesis
Cytokinesis
The process by which the cytoplasm of a cell divides to form two daughter cells, following mitosis.
Homologous chromosomes
Homologous chromosomes
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Meiosis
Meiosis
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Study Notes
Cell Cycle and Cell Division
- The shortest phase of the cell cycle is interphase.
- Cell division involves both mitosis and cytokinesis.
- The cell cycle includes interphase.
- Interphase is further divided into the G0, G1, and S, and G2 phases.
- The G0 phase is a non-dividing state, like nerve cells
- G1 phase is cell growth.
- The S phase is DNA replication
- The G2 phase is the final preparation before mitosis.
Mitosis
- Mitosis comprises distinct phases with specific tasks:
- A series of events that result in the division of one cell into two genetically identical daughter cells.
Meiosis
- Meiosis is a specialized type of cell division that produces gametes.
- It involves two rounds of division.
- The phases of meiosis, including major events, are crucial to the process
- Meiosis I and Meiosis II lead to four genetically unique daughter cells
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