5.1 REPLICATION AND DIVISION OF NUCLEI AND CELLS 3
1 DESCRIBE THE STRUCTURE OF A CHROMOSOME, LIMITED TO DNA, HISTONE PROTEINS, CHROMATIDS, CENTROMERE AND TELOMERES
DNA PACKAGING
2 EXPLAIN THE IMPORTANCE OF MITOSIS IN THE PRODUCTION OF GENETICALLY IDENTICAL CELLS, GROWTH, CELL REPLACEMENT, REPAIR OF TISSUES AND ASEXUAL REPRODUCTION
3 OUTLINE THE CELL CYCLE, INCLUDING INTERPHASE (GROWTH IN G1 AND G2 PHASES AND DNA REPLICATION IN S PHASE), MITOSIS AND CYTOKINESIS
4 OUTLINE THE SIGNIFICANCE OF TELOMERES IN PERMITTING CONTINUED REPLICATION AND PREVENTING THE LOSS OF GENES
5 OUTLINE THE SIGNIFICANCE OF STEM CELLS IN CELL REPLACEMENT AND TISSUE REPAIR BY MITOSIS AND STATE THAT UNCONTROLLED CELL DIVISION CAN RESULT IN THE FORMATION OF A TUMOUR
6 DESCRIBE, WITH THE AID OF PHOTOMICROGRAPHS AND DIAGRAMS, THE BEHAVIOUR OF CHROMOSOMES IN PLANT AND ANIMAL CELLS DURING THE MITOTIC CELL CYCLE AND THE ASSOCIATED BEHAVIOUR OF THE NUCLEAR ENVELOPE, CELL SURFACE MEMBRANE AND THE SPINDLE (NAMES OF THE MAIN STAGES OF MITOSIS ARE EXPECTED)
7 OBSERVE AND DRAW THE MITOTIC STAGES VISIBLE IN TEMPORARY ROOT TIP SQUASH PREPARATIONS AND IN PREPARED SLIDES OF ROOT TIPS OF SPECIES SUCH AS THOSE OF VICIA FABA AND ALLIUM CEPA