AS Biology Revision 5.0 / 5 based on 1 rating ? BiologyAll Topics in ASASAQA Created by: charlotte25Created on: 01-03-16 13:32 510271648 Across 1. the process whereby a chromatid breaks during meiosis and rejoins to the chromatid of its homologous chromosome so that their alleles are exchanged (8, 4) 4. the type of nuclear division in which the daughter cells have the same number of chromosomes as the parent cell (7) 7. nucleotide found in all living organisms, produced during respiration (3) 8. the breaking down of large molecules into smaller ones by the addition of water molecules (10) 10. a type of white blood cell that produces antibodies (1, 10) Down 1. a sequence of three adjacent nucleotides in mRNA that codes for one amino acid (5) 2. a chemical bond formed between two amino acids (7, 4) 5. mechanism by which cells engulf particles to form a vesicle or a vacuole (12) 6. type of nuclear division in which the number of chromosomes is halved (7) 7. one of a number of alternative forms of a gene (6)
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