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Cell Reproduction

TermDefinition
Cell Cycle The sequence of events that occurs in a cell between divisions
Chromatin Long thin strands of DNA found in the nucleus
Chromosomes The duplicated strands of chromatin that happens during Interphase
Chromatids The thickened coiled up chromosomes in Prophase & Metaphase
Centromere The point where the chromosomes and chromatids connect
Interphase Part One of the Cell Cycle. DNA & chromosomes are duplicated; growth occurs; organelles are duplicated.
Mitosis Part Two of the Cell Cycle; division of the nucleus occurs.
Prophase First step of mitosis; chromosomes coil & thicken & become chromatids; centrioles migrate to the poles of the cell.
Metaphase Second step of mitosis; chromatids line up on the equator; spindle fibers attach to the centromeres of the chromatids
Anaphase Third step of mitosis; centromeres separate; chromatids pull apart and become chromosomes
Telophase Fourth step of mitosis: two new nuclear membranes form at the poles; cytoplasm begins to divide
Cytokinesis Third part of the Cell Cycle; cytoplasm divides; animals form a protein belt; plants form a cell plate
Centrioles A barrel-shaped structures in animal cells that play a role in mitosis
Diploid cells Body cells that have pairs of chromosomes.
Haploid cells The sex cells that have a single set of chromosomes.
Zygote The cell created by fertilization.
Meiosis The process that halves the number of chromosomes and creates the sex cells.
Asexual reproduction A process which produces a new organism from a single parent; offspring are identical to the parent.
Regeneration Aprocess that re-grows lost or damaged body parts
Budding A new organism growing from the body of the parent
Binary fission Reproduction that occurs in prokaryotic cells; the DNA duplicates, then the cell splits.
Sexual reproduction A process where two organisms come together to produce a new organism that is genetically different.
Created by: nbiegel