Question Acceptable Answer Not acceptable Mark 8 (c) Stage 2 Nuclear membrane Chromosomes 1 disappears / breaks down or shorten and Spindle forms or thicken Chromosomes / (pairs of) Chromatids join chromatids / they move to together at equator / middle of cell centromere Stage 4 Chromatids / they Chromosomes / 1 separate or Chromatids / they chromatids are pulled apart or Spindle fibres Chromosomes shorten separate (d) So there is no loss of information So they have all 1 / So they have the same the information (as parent cell) / So characteristics they have a full set of information of the species – / genes / all genes passed on negates So they function properly So they have correct information Same genetics To stop mutation (negates)
Question Acceptable Answer Not acceptable Mark 8 (c) Stage 2 Nuclear membrane disappears / breaks down or Spindle forms or Chromosomes / (pairs of) chromatids / they move to equator / middle of cell Stage 4 Chromatids / they separate or Chromatids / they are pulled apart or Spindle fibres shorten Chromosomes shorten and thicken Chromatids join together at centromere Chromosomes / chromatids Chromosomes separate 1 1 (d) So there is no loss of information / So they have the same information (as parent cell) / So they have a full set of information / genes / all genes passed on So they have all the characteristics of the species – negates So they function properly So they have correct information Same genetics To stop mutation (negates) 1
Biology-N5-Past-Paper-Questions-Cell-Biology1.docx