C4. P3 Flashcards
What is the genotype for Klinefelter syndrome?
XXY
What are symptoms of Klinefelter syndrome?
Tall, low levels of testosterone compared to males, reduced facial hair, larger breasts, and infertile
What is the birth rate for Klinefelter syndrome?
1 in every 1,000 male births
What is the genotype for Triple X syndrome?
XXX
What are the symptoms of Triple X syndrome?
Tall, delayed muscle tone development, learning difficulties, infertile
What is the birth rate for Triple X syndrome?
1 in every 1,000 female births
What is the sexually indifferent stage?
The first seven weeks of embryo development
At how many weeks can gender be determined in fetuses?
12 weeks
What is organizational development?
Hormones working to organize biological development
How does testosterone help the blood?
Produces red blood cells necessary for the maintenance of bone and muscle strength
Where are small amounts of testosterone located in both sexes?
Adrenal glands
Where is testosterone produced in females?
Ovaries
What is the Sry Gene?
Houses instructions for making a protein that results in the body converting the gonads to testes
What is a critical period?
A period of development in which the organism is particular open to influence from the environment
What is sry translocation?
The sry gene is translocated onto a X chromosome, resulting in some XX people to have a sry gene