Misc.+Birth+Questions+SLS

November 05, 2008 Science-Human Bio**
 * Shelby Smith


 * Miscellaneous Reproduction Topics**

Ultrasound guides a needle to collect immature eggs. The eggs then are brought to maturity in glassware and then fertilized with frozen sperm. Then after 2-4 days it's ready to be transfered to woman's uterus during secretion.
 * (1) What does IVF stand for? What does it treat? How does the doctor get the eggs? Where are the embryo’s made and when are they implanted? Where are they implanted? (p.334)**

Frozen embryos can be saved for another surrogate or they can be used for stem cell research, which aides the treatment for infertility.
 * (2) Embryos that are not implanted are frozen? What can happen to frozen embryos? (p.335)**

When the egg implants in the oviduct. Sometimes the ectopic pregnancy will not be successful because the oviduct cannot support the egg.
 * (3) What is an ectopic pregnancy? (p. 357)**

DNA is taken from the donor, and then the egg is removed from the female and the nucleus is taken out. The egg is fused and new DNA is invented, and the embryo begins to develope after electric shock which triggers cell divisions. The embryo then begins to develop in the vitro and is then implanted into the surrogate of the mother.
 * (4) Briefly describe how cloning is done. (p. 362)**

The clones grow abnormally large therefore ripping the mother's uterus, they also live a shorter lifespan due to many illnesses and abnormalities.
 * (5) What are some the problems that have developed in cloned animals? (p. 362)**

Reproductive cloning is the success of a clone, and on the other hand therapeutic cloning is the success of a clone only to the embryonic level so it can be formed into other types of cells.
 * (6) What is the difference between reproductive cloning and therapeutic cloning? What are the pros and cons of each. (p. 362)**

After 6 weeks of ovulation the testis or the ovaries develop.
 * (7) When can you tell if an embryo is a boy or girl? (p. 364)**

Ambiguous Sex Determination: Androgen Insensitivity Syndrome and Male Pseudohermaphroditism AIS: Three hormones are produced by the testes and they are present but the plasma membrane receptors for testosterone do not work. Then the external genitalia develop as female and lastly, the testes stay in body and the person develops secondary sex characteristics of female, yet they fail to menstruate.
 * (8) Describe two causes of cases where a person is XY (male) but looks and acts female. (p. 365)**

it is having both ovarian and testicular tissue.
 * (9) What is true hermaphroditism? (p. 365)**

The afterbirth which is comprised of placenta.
 * (10) What is stage 3 of birth? What happens? (p. 369)**