obsidianvault/biology/G11 Pre-AP Biology/Spermatogenesis and Oogenesis.md

G11 Pre-AP Biology ! !-disjunction is the failure of chromosomes seperating. Aneuploidy is when the number of chromosomes is incorrect. Trisomy is an extra chromosome. Monosomy is missing chromosomes. Polyploidy are extra set(s) of chromosomes. Triploidy is 3 sets of chromosomes (3n). Tetraploidy is 4 sets of chromosomes (4n). Octaploidy is 8 sets of chromosomes (8n).

Trisomy 21 is Down's syndrome. Trisomy 18 is Edward's syndrome. Trisomy 13 is Patau's syndrome. 47 XXY is Klinefelter's syndrome. 47 XYY is Jacob's syndrome.