Human Chromosome
Karyotypes
Human Chromosome
Human Chromosome Smear
Karyotypes
More Karyotypes
Nondisjunction
• Failure of pairs of homologous
chromosomes to properly split during
meiosis
• Result: Eggs and sperm with too many
or too few chromosomes
Triplo X Syndrome
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Individual with 3 X sex chromosomes
Gender?
Female
Usually normal, rarely sterile
Surprisingly may be underdeveloped in
breasts
Kleinfelter’s Syndrome
Kleinfelter’s Karyotype
Turner’s Syndrome
Turner’s Syndrome Features
Jacob’s syndrome
Down’s Syndrome
Edward’s Syndrome
Patau Syndrome
Amniocentisis
Chorionic Villi Sampling
Your possible karyotypes
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Normal Male
Normal Female
Turner’s Syndrome
Kleinfelter’s Syndrome
Triplo X Female
Down’s Syndrome
Jacob’s Syndrome