May2000_A_Biology_HL_P2 - INTERNATIONAL BACCALAURAT...

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MARKSCHEME May 2000 BIOLOGY Higher Level Paper 2 M00/410/H(2)M BACCALAUREATE BACCALAUR&AT INTERNATIONAL BACHILLERATO INTERNACIONAL 11 pages
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2. (a) a group of genes located on the same chromosome; [1] (b) purple short and red long are recombinants; because they have a different combination of characteristics / genotype from the parents; (reject reasons relating to percentages) [2] (c) crossing over must take place; between the two genes on the chromosome; [2] (d) ( [1 mark] max if alleles shown without bars for chromosomes)
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May2000_A_Biology_HL_P2 - INTERNATIONAL BACCALAURAT...

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