Chapter 11 - Mitosis Flashcards Preview

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Flashcards in Chapter 11 - Mitosis Deck (20):
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Asexual reproduction

Reproduction mode by which offspring arise from a single parent cell

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Cell cycle

A series of events from the time a cell forms until it's cytoplasm divides

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Homologous chromosomes

Chromosomes with the same length, shape, and set of genes

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Interphase

In a eukaryotic cell cycle the interval between mitotic divisions when a cell enlarges, roughly doubles the number of its cytoplasmic components and replicates its DNA

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Mitosis

Nuclear division mechanism that maintains the chromosomal number. Basis of body growth and tissue repair in multi-celled eukaryotes, also asexual reproduction in some plants, animals, fungi, and protista

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Prophase

Stage of mitosis during which chromosomes condense and become attached to a newly forming spindle

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Metaphase

Stage of mitosis at which cell's chromosomes aligned midway between poles of the spindle

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Anaphase

Stage of mitosis during which sister chromatids separate and move to opposite spindle poles

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Telophase

Stage of mitosis during which chromosomes arrive at the spindle poles and deco de se, and new nuclei form

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Spindle

Dynamically assembled and disassembled network of microtubules that move chromosomes during nuclear division

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Cell plate

After nuclear division in a plant cell, a disk-shaped structure that dorms a cross-wall between the two new nuclei

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Cleavage furrow

In a dividing animal cell, the indentation where cytoplasmic division will occur

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Cytokinesis

Cytoplasmic division

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Telomere

Noncoding, repetitive DNA sequence at the end of chromosomes, protects the coding sequences from degradation

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Growth factor

Molecule that stimulates mitosis and differentiation

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Metastasis

The process in which cancer cells spread from one part of the body to another

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Neoplasm

An accumulation of abnormally dividing cells

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Oncogene

Gene that helps transform a normal cell into a tumor cell

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Proto-oncogene

Gene that, by mutation, can become an oncogene

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Tumor

A neoplasm that forms a lump