prophase


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pro·phase

 (prō′fāz′)
n.
1. The first stage of mitosis, during which the chromosomes condense and become visible, the nuclear membrane breaks down, and the spindle apparatus forms at opposite poles of the cell.
2. The first stage of meiosis, constituted by a series of events that include the thickening and coiling of the chromosomes, synapsis of homologous chromosomes, tetrad formation, and crossing over.
pro·pha′sic (-fā′zĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

prophase

(ˈprəʊˌfeɪz)
n
1. (Biology) the first stage of mitosis, during which the nuclear membrane disappears and the nuclear material resolves itself into chromosomes. See also metaphase, anaphase, telophase
2. (Biology) the first stage of meiosis, divided into leptotene, zygotene, pachytene, diplotene, and diakinesis phases
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

pro•phase

(ˈproʊˌfeɪz)

n.
the first stage of mitosis or meiosis in cell division, during which the nuclear envelope breaks down and strands of chromatin form into chromosomes.
[1880–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

pro·phase

(prō′fāz′)
The first stage of cell division. Before prophase begins, the chromosomes duplicate to form two long, thin strands called chromatids. During prophase itself, the chromatids condense and thicken and the membrane surrounding the nucleus disappears. In mitosis, prophase is followed by metaphase. See more at meiosis, mitosis.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.prophase - the first stage of meiosisprophase - the first stage of meiosis    
diakinesis - the final stage of the prophase of meiosis
diplotene - the fourth stage of the prophase of meiosis
leptotene - the first stage of the prophase of meiosis
meiosis, miosis, reduction division - (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
pachytene - the third stage of the prophase of meiosis
phase of cell division - a stage in meiosis or mitosis
synezesis, synizesis - the contraction of chromatin towards one side of the nucleus during the prophase of meiosis
zygotene - the second stage of the prophase of meiosis
2.prophase - the first stage of mitosis
mitosis - cell division in which the nucleus divides into nuclei containing the same number of chromosomes
phase of cell division - a stage in meiosis or mitosis
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
profaza

pro·phase

n. profase, primera fase en la mitosis celular.
English-Spanish Medical Dictionary © Farlex 2012
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