Unformatted text preview: As many as 1 in 20 eggs produced after the age of 40 may carry this chromosome abnormality. There is also some increased frequency in sperm associated with aging. Characteristics: Poor muscle tone, including the heart muscle Tongue and mouth not proportioned, affecting speech Mental retardation is sometimes present Immune system weakened...
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This note was uploaded on 12/29/2011 for the course BIO 151 taught by Professor Edwards during the Spring '10 term at SUNY Stony Brook.
- Spring '10