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Meiosis BF

QuestionAnswer
S-Phase * 2nd stage of interphase. -Cell DNA is copied.
Mitosis Division of the nucleus -Process by which cells make a duplicate set of chromosomes Cell division has 2 parts: Division of nucleus (M Phase) Division of Cytoplasm.
Telophase 4th Final phase of MITOSIS chromosomes lengthen chromosome 4th Final phase of MITOSIS chromosomes lengthen chromosomes reach opposite poles of the cell and the cytoplasm begins to divide.
Binary Fission division of prokaryotic cell (lacks a nucleus and membrane bound organelle) into 2 offspring cells: 1) prokaryotic cell 2)copied 3) cell begins to divide 4)2 identical haploid cells
Asexual Reproduction Producing offspring from ONE parent. Does not usually involve meiosis or union of gametes: **** Genetically identical to parent.
Cytokinesis The division of the cytoplasm of the cell. Cyto= Cytoplasm
Haploid A cell that only contains one set of chromosomes. Meiosis produces haploid cells. Human sperm cells, egg cells. contains only one set of chromosomes Haploid = 1n
Meiosis Meiosis only takes place in testes & ovaries It is the process by which sperm and eggs are formed with 1/2 the number # of chromosomes
What are the phases of the cell cycle? G cell growth - S DNA replication -G2 preparation for cell division
G1 Phase First Stage of interphase Offspring cells grow to mature size (cell growth)
G2 Phase 3rd Stage of interphase. Cell prepares for cell division.
Sexual Reproduction Producing offspring [Through meiosis and the union of sperm & egg] with combination of genetic material from 2 parent organisms
Anaphase 3rd phase of mitosis in which chromosomes separate at the centromere and slowly move centromere first toward opposite poles of dividing cell.
Crossing over crossing over is a way that chromosomes randomly mix up genetic traits.
Diploid a cell that contains both chromosomes of homologous pair. -cells that have 2 SETS of chromosomes all normal human cells (except reproductive cells)
centromere the region of the chromosome that holds the two sister chromatids together during mitosis. The tight constricted area of each chromatid. The centromere holds the chromatids together until they separate in cell division.
Homologous chromosome The two copies of each autosome are called homologous chromosomes or homologues. , chromosomes that have the same sequence of genes, that have the same structure, and that pair during meiosis.
Metaphase 2ND stage mitosis the chromosomes line up alone midline of dividing cell. , the stage in mitosis or meiosis in which the duplicated chromosomes line up along the equatorial plate of the spindle
Chromatid each 1/2 of the chromosome is called a chromatid, one of two identical strands into which a chromosome splits during mitosis
Interphase the period in the eukaryotic cell cycle when the cell is not actually dividing. DNA replicates
Prophase The FIRST STAGE of mitosis &meiosis, characterized by shortening of chromosomes -copied DNA coils into chromosomes
Independent assortment during meiosis the random distribution of genes from different
Cell Plate In cytokinesis in plant cells, a membrane bound cell
Gamete egg or sperm sex cell that contains a single set of chromosomes, one from each homologous pair. sex cells (sperm, egg) in humans: meiosis produces haploid reproductive cells called gametes.
Oogenesis production of eggs., development of ova
Created by: brittanyfox
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