mitosis

/mi'tousis/

Thân thiện

A student observes mitosis under a microscope in biology class.

Definition

1. Noun:
   • A type of cell division: Mitosis is the process in which a single cell divides to produce two genetically identical daughter cells. The nucleus divides first, resulting in two nuclei that each contain the same number of chromosomes as the original parent cell. This process is fundamental for growth, development, and tissue repair in multicellular organisms.

Examples of Usage

• Noun:
  • The biology textbook has a detailed diagram illustrating the stages of mitosis.
  • During growth, cells in the root tip undergo rapid mitosis.
  • Mitosis ensures that each new cell receives a complete set of chromosomes.

Advanced Usage

• "To undergo mitosis": This phrase describes a cell entering and completing the process of mitotic division.
  • The damaged tissue healed as the cells began to undergo mitosis.
• "Mitotic cell division": A more formal term synonymous with mitosis, emphasizing it as a type of division.
  • Cancer involves the uncontrolled mitotic cell division of abnormal cells.

Variants and Related Words

• Mitotic (adj): Relating to or involving mitosis.
  • The mitotic spindle is a structure that helps separate chromosomes.
• Amitosis (n): A type of cell division that does not involve the mitotic process; direct cell division.
  • Amitosis is less common and is observed in some protozoans and in certain mammalian tissues.

Synonyms

• Cell division (specifically equational division): A general term, with "equational division" being a more specific synonym for mitosis, highlighting the equal distribution of genetic material.
• Karyokinesis (followed by cytokinesis): Refers specifically to the division of the nucleus, which is the key event in mitosis, typically followed by the division of the cytoplasm (cytokinesis).

Related Phrases

(Note: "Mitosis" is a specific scientific term and does not commonly form phrasal verbs or idioms in everyday language. The related phrases are fixed scientific expressions.) - "Stages of mitosis": Refers to the sequential phases of the process: prophase, metaphase, anaphase, and telophase. - Students must memorize the order of the stages of mitosis. - "Mitotic index": A measure of the percentage of cells in a sample that are undergoing mitosis. - A high mitotic index in a tumor biopsy can indicate aggressive cancer.

Học thuật

Noun

1. cell division in which the nucleus divides into nuclei containing the same number of chromosomes