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Nov 18,2016 Science 9 Dryden Webb body cells gametes body cells mitosis egg cells sperm cells chromosomes The gametes have half the number of chromosomes as body cells. Nov 18,2016 Science 9 Dryden Webb 8 4 The doubled chromosomes line up across the center/middle of the cell. To opposite sides of the cell. Different Each cell has one chromosome from each pair. Also each chromosome is composed of sister chromatids. The chromosomes in the centre of the cell are not paired. The sister chromatids separate just like a telophase in mitosis. 4 new cells. Half the number of chromosomes. Nov 18,2016 Dryden Webb Science 9 The nuclear membrane/nuclear envelope disappears. The nucleolus disapears. The homologous chromosomes pair up and each attach The nucleolus fades/disappears. The nuclear membrane disappears. to spindle fibers. The non sister chromosomes The spindle fibers form. exchange genetic material (crossing over). The Individual spindle fibers attach to the chromosomes. . The nucleolus disappears The nuclear membrane disappears. The chromosomes and homologous pair up at the equator of the cell to the spindle fibers. The spindle fibers would contract and shorten. The chromosomes and the homologous attached to the centromeres separate and are pulled from the spindle fibers to opposite poles of the cell. One chromosome from each homologous pair is at each pole/side of the cell. The spindle fibers disappear. The nuclear membrane/nuclear envelope reforms. The cytokinesis divides the cell into two cells. cell divides in two (which are not genetically identical to parent cell). The cell would grow and make proteins like an inter-phase in mitosis. There is no replication of DNA in this stage. The nucleolus disappears. The nuclear membrane disappears The chromosomes line up at the center/equator of the cell attaching to the spindle fibers. The spindle fibers contract and shorten. The centromere pulls apart, and the sister chromatids separate and are pulled to opposite poles by the spindle fibers. One complete set of chromosomes is now at each pole of the cell. The spindle fibers dissapear. The nucleolus appears with each nucleus. The nuclear membrane forms. Where a cell in tenophase divides in two (which is genetically identical to parent cell). The cell that divides will grow and make proteins like an inter-phase in Mitosis. The DNA will replicate later in inter-phase. Nov 18,2016 Science 9 Dryden Webb The nucleolus dissapears as well as the nucleus. The nuclear membrane dissapears. The spindle fibers form. Individual chromosomes get attached to the spindle fibers. The nucleus dissapears. The nuclear membrane dissapears/fragments as well. The spindle fibers form. The individual chromosomes in the cell attach to the spindle fibers that are made from the centrioles. The nucleus dissapears. The nuclear membrane dissapears. The spindle fibers form. The x shaped chromosomes attach to the spindle to form a straight line at the center/equator of the cell. The nucleolus dissapears. The nuclear membrane also dissapears. The spindle fibers form. The chromosomes that are shaped like an x attach to the spindle fibers and align a single line at the equator/center of the cell. The nucleolus dissapears. The nuclear membrane/nuclear envelope disappears. The spindle fibers contract and shorten/disappear. The centromere pulls apart and the sister chromosomes (chromatids) separate and get pulled to their opposite poles by the spindle. The nucleolus dissapears. The nuclear membrane dissapears as well. The spindle fibers contract and shorten. The centromere pulls apart and the sister chromatids separate and are pulled to opposite poles by the spindle fibers. The chromosomes decondense. There is half of the complete set of the chromosomes are now at each pole of the cell. (There is one chromosome for each pair.) The spindle fibers disappear. The nucleolus appears with each nucleus. The new nuclear membrane/nuclear envelope forms. . The Cytokinesis divides the cell into two cells One complete set of chromosomes are now at each pole of the cell. The spindle fibers disappear. The nucleolus forms. The nucleolus appears with each nucleus. The nuclear membrane forms. The cell divides into two cells (total four haploid daughter cells that are not identical to parent cell.) The Cytokinesis divides the cells by removing spindle fibers. The cell would produce proteins just like an interphase in mitosis. The cell divides into two cells( the total is two daughter cells that are identical to the parent cell.) The Cytokinesis divides the cells by removing the spindle fibers. The cell would grow and make proteins like an interphase in mitosis.