Tutorial: Chromosomes in mitosis

  • strict warning: Non-static method view::load() should not be called statically in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/views.module on line 823.
  • strict warning: Declaration of views_plugin_display::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/plugins/views_plugin_display.inc on line 0.
  • strict warning: Declaration of views_plugin_display_block::options_submit() should be compatible with views_plugin_display::options_submit(&$form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/plugins/views_plugin_display_block.inc on line 0.
  • strict warning: Declaration of views_plugin_display_page::options_submit() should be compatible with views_plugin_display::options_submit(&$form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/plugins/views_plugin_display_page.inc on line 0.
  • strict warning: Declaration of views_handler_field_broken::ui_name() should be compatible with views_handler::ui_name($short = false) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_field.inc on line 0.
  • strict warning: Declaration of views_handler_sort_broken::ui_name() should be compatible with views_handler::ui_name($short = false) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_sort.inc on line 0.
  • strict warning: Declaration of views_handler_filter::options_validate() should be compatible with views_handler::options_validate($form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_filter.inc on line 0.
  • strict warning: Declaration of views_handler_filter::options_submit() should be compatible with views_handler::options_submit($form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_filter.inc on line 0.
  • strict warning: Declaration of views_handler_filter_broken::ui_name() should be compatible with views_handler::ui_name($short = false) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_filter.inc on line 0.
  • strict warning: Declaration of views_handler_filter_many_to_one::init() should be compatible with views_handler_filter::init(&$view, $options) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/handlers/views_handler_filter_many_to_one.inc on line 0.
  • strict warning: Declaration of views_handler_filter_term_node_tid::value_validate() should be compatible with views_handler_filter::value_validate($form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/modules/taxonomy/views_handler_filter_term_node_tid.inc on line 0.
  • strict warning: Declaration of views_plugin_row::options_validate() should be compatible with views_plugin::options_validate(&$form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/plugins/views_plugin_row.inc on line 0.
  • strict warning: Declaration of views_plugin_row::options_submit() should be compatible with views_plugin::options_submit(&$form, &$form_state) in /home/dvdfos0/public_html/geneticssuite/sites/all/modules/views/plugins/views_plugin_row.inc on line 0.

The cell division process, mitosis, is responsible for multiplying cells and repairing damaged tissue. The chromosomes of a cell go through mitosis individually, producing two cells that are genetically identical with the same number of chromosomes as the cell that entered mitosis.

 

For scholars: Draw the progression of two chromosomes through mitosis

• One metacentric and one acrocentric chromosome.
• Follow the clues and complete the templates for metaphase, anaphase and telophase.
• Tip: Recall that the centromeres attach to the spindle, therefore when the chromosomes move towards the poles the centromeres will be closest to the poles.
• Tip: Make sure that you take into account the lengths of the arms of the chromosomes.

Questions:

Choose the appropriate words:
1. A chromosome at an anaphase pole has 1 / 2 chromatin strands.
2. An anaphase pole has the same / different number of chromosomes compared to the interphase cell.

3. Give a symbolic representation of the chromosome number of a daughter cell. 
4. How many chromatin strands are there in the metaphase cell?
5. How many chromatin strands are there in one daughter cell?