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Random fertilisation
t
Crossing over
r
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s
Recombination
Independent assortment of homologous chromosomes
Variation
Klienefelter's Syndrome (XXY)
Chromosomal mutation
Mutation
Turner's syndrome (XO)
Karyotyping
Genetic mutation
Down's syndrome (Trisomy 21)
Sickle cell anaemia
Interphase
- Chromosome duplication
- Condensation
PCR works base on STR (short tandem repeats)
Prophase
Metaphase I
Prophase
- Condensation
- Nuclear envolope disappear
Anaphase I
PCR
- Independent assortment of homologous chromosomes
Telophase I
- Chromosomes line up at equator
Metaphase
Cytokinesis
DNA finerprinting
Metaphase II
Anaphase
Anaphase II
- New nuclear envolope forms (daughter nuclei)
Telophase II
Cytokinesis
Cytokinesis
PCR & DNA fingerprinting
Mitosis
Meiosis
RMP (random amtch probability)
Reproduction
f(STR)*f(STR) for homozygous
f(STR)*f(STR)*2 for heterozygous
Inheritence
Dihybrid cross
Punnett square
Genetic diagram
Biology revision
Factors
Photosynthesis
Plant nutrition
Plant physiology