A member asked:

What is the effect if you have an extra female chromosome?

A doctor has provided 1 answer
Dr. Nikolaos Zacharias answered

Specializes in Maternal-Fetal Medicine

Usually none.: 62% of 47, xxx women are reportedly physically normal. They have a tendency to be tall, with many reaching the 80%tile by adolescence. Puberty and fertility are within the normal range. Their verbal and performance iqs are 15 to 20 points lower than those of their siblings. These women do not appear to be at increased risk of having chromosomally abnormal offspring.

Answered 6/22/2012

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