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ISSUES OF CELL DIVISION ON HUMAN HEALTH, 47 chromosomes (+1 at the 21st…
ISSUES OF CELL DIVISION ON HUMAN HEALTH
MEIOSIS
non-disjunction
homologous chromosomes (Anaphase I)
sister chromatids (Anaphase II)
Down Syndrome: Trisomy 21
EFFECT
reduced mental capacity
slanted eyes
slight protruding tongue
short height
flattened face
MITOSIS
Benign
Localized
Removal via surgery
Slow growth
e.g- Moles, freckles, lipomas (fat cells)
Unlikely to recur after removal/ require further treatment such as radiation or chemotherapy
Cells tend not to spread; non-invasive
Malignant
Rapid growth
Treatment via surgery, radiotherapy, chemotherapy
Cells can spread; invasive
Metastasize via bloodstream or lymphatic system
Requires aggressive treatment due to recurrence
e.g-Skin, lung, brain, ovarian cancer
47 chromosomes (+1 at the 21st set)
