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BIO Study Guide

Vocabulary study guide for chapters 10 and 11 sec. 4

QuestionAnswer
sister chromatids replicated or copied chromosomes
centromere where the "sister" chromatids are attached
mitosis the first stage of cell division in which the nucleus divides
cytokinesis the second stage in which the cytoplasm is divided
prophase the first and longest phase of mitosis, in which the chromosomes become visible
metaphase second phase, during it the chromosomes line up across the center of the cell
anaphase third phase, the centromeres that join the sister chromatids split
telophase fourth phase, the chromosomes begin to disperse into a tangle of dense material
centrioles two tiny structures located in the cytoplasm near the nuclear envelope
cyclin protein that seemed to regulate the cell cycle
homologous two sets of chromosomes from a male and female
diploid a cell that contains both sets of homologous chromosomes
haploid a cell with a single set of chromosomes
N haploid interpretation (abbreviation)
2N diploid interpretation (abbreviation)
tetrad a pair of chromosomes pairing with its corresponding homologous chromosome
crossing over exchange of alleles between homologous chromosomes and produces new combination's of alleles
gametes a genders special cell for reproduction
polar bodies three other cells produced in the female during meiosis, do not participate in reproduction
spindle a fanlike microtubule structure that helps separate the chromosomes
Created by: bluerose6195
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