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Science
Biology
Pathology
Genetics Exam 1. Chapter Seven
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Notes.
Sex determining chromosomes.
Heterogametic Sex, like XY
Homogametic Sex, like XX
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Human Female has two XX
Human Male has XY
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Notes.
Sex determining chromosomes.
Heterogametic Sex, like XY
Homogametic Sex, like XX
Human Female has two XX
Human Male has XY
What chromosome determines the maleness in humanes?
Y Chromosome
-Individuals generally taller
-Long arms and legs
-large hands and feet
-Lack of reproduction
-feminine sexual development not entirely suppressed
-Gynecomastia an hips rounded
-Intelligence below normal
-1/600 male births
Klinefelter Syndrome (47, XXY)
Examples of 48 XXXY, 48 XXYY, 49 XXXXY AND 49 XXXYY
What do individuals with Klinefelter Syndrome have regarding chromosomes?
Klinefelter Syndrome have more than one X chromosome
Most often have an XXY complement in addition to 44 autosomes
What do individuals with Turner Syndrome consist of regarding chromosomes?
Turner Syndrome individuals have only 45 Chromosomes, the included only a single X chromosomes
1/2000 FEMALE BIRTHS
