A-LevelBiologyThe mitotic cell cycleMay/June 2012Paper 1 Q171 Mark
Each of the following events takes place during mitosis. 1 centromeres divide 2 chromatids move to opposite poles of the cell 3 chromosomes line up along the equator of the spindle 4 chromosomes uncoil 5 two chromatids are joined by a centromere In which order do the events take place?
Afirst: 1, last: 3 (order: 1, 2, 4, 5, 3)
Bfirst: 3, last: 5 (order: 3, 1, 2, 4, 5)
Cfirst: 4, last: 2 (order: 4, 5, 3, 1, 2)
Dfirst: 5, last: 4 (order: 5, 3, 1, 2, 4)
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The correct answer is D. This question tests the candidate's understanding of the mitotic cell cycle within the Biologysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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