Podcast
Questions and Answers
What is the function of the G1 phase in interphase?
What is the function of the G1 phase in interphase?
- Chromosomes condense into mitotic chromosomes.
- Cell synthesizes proteins and mRNA. (correct)
- Chromosomes are pulled towards the cell poles.
- DNA replication occurs.
During which phase do chromosomes align at the metaphase plate?
During which phase do chromosomes align at the metaphase plate?
- Telophase
- Prophase
- Metaphase (correct)
- Anaphase
What marks the beginning of anaphase?
What marks the beginning of anaphase?
- Formation of the nuclear envelope
- Alignment of chromosomes at the metaphase plate
- The splitting of sister chromatids (correct)
- Deterioration of the nuclear envelope
What occurs during the S phase of interphase?
What occurs during the S phase of interphase?
What initiates the formation of mitotic spindle?
What initiates the formation of mitotic spindle?
Which statement best describes telophase?
Which statement best describes telophase?
What is the primary function of binary fission?
What is the primary function of binary fission?
What happens to the Golgi bodies during prophase?
What happens to the Golgi bodies during prophase?
Flashcards
Mitosis
Mitosis
The process by which cells divide to create two identical daughter cells.
Interphase
Interphase
The first stage of mitosis, where the cell prepares for division by growing and copying its DNA.
S Phase
S Phase
The stage of Interphase where the cell's DNA is copied.
Prophase
Prophase
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Metaphase
Metaphase
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Anaphase
Anaphase
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Telophase
Telophase
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Centromere
Centromere
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Study Notes
Cell Division Overview
- Cells divide for growth, reproduction, and repair.
- Methods include meiosis (gametes), mitosis (body cells), and binary fission (bacteria).
Mitosis Stages
- Interphase: The cell grows and prepares for division.
- G1 phase: Cell growth and protein synthesis.
- S phase: DNA replication.
- Unwinding: Helicase unwinds the DNA double helix.
- Templating: Two single DNA strands act as templates for creating identical strands.
- Base pairing: DNA polymerase pairs nucleotides with the templates.
- G2 phase: Cell synthesizes proteins and increases membrane building materials.
- Prophase: Chromosomes condense, the mitotic spindle forms, and the nuclear envelope breaks down.
- Metaphase: Chromosomes align at the metaphase plate.
- Anaphase: Sister chromatids separate, and the chromosomes are pulled to opposite poles.
- Telophase: Chromosomes arrive at opposite poles, nuclear envelopes reform, and other organelles reappear.
Interphase
- Cell growth and preparation for DNA replication that happens before mitosis.
- Includes G1, S, and G2 phases.
Prophase
- Condensation of genetic material into chromosomes.
- Formation of mitotic spindle and dispersal of the nuclear envelope.
Metaphase
- Prometaphase: Nuclear envelope disintegrates and microtubules attach to chromosomes.
- Chromosomes align at the center of the cell (metaphase plate).
Anaphase
- Sister chromatids separate, and chromosomes move to opposite poles.
- Chromosome arms follow the centromere towards the opposite ends.
Telophase
- Chromosomes arrive at opposite poles, new nuclear envelopes form.
- Other cell structures (nucleolus, Golgi, ER) reassemble.
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Description
Explore the fascinating processes of cell division, including mitosis, meiosis, and binary fission. This quiz covers the stages of mitosis, from interphase to telophase, detailing each phase's critical functions and components involved in cell growth and reproduction.
