The sex of a baby is determined by the two sex chromosomes inherited from the parents. A baby will normally inherit one sex chromosome from the mother, and one from the father. A woman has two X chromosomes, so she can give either of her X chromosomes.The father can give either his X or Y chromosome. girl baby will result if the final arrangement is XX, and a boy will result if it is XY. As you would expect, about half of the sperm cells contain an X chromosome, and half contain a Y chromosome. It is possible to have an abnormal number of sex chromosomes, however, this is extremely rare.
So the old recommendation of when to begin Pap smear testing has changed. This testing should start either at age 21 or three years after the start of sexual activity. (âPrematureâ Pap smears can pick up minimal changes that wonât result in cancer, but will cause concern and lead to extensive, unnecessary testing.). So, for a young teenager who is not sexually active, her first visit to a gynecologist need not include a Pap smear. But other important health issues should be addressed at this critical juncture between adolescence and adulthood.
Routine Pap testing and pelvic examâ¦. The Pap smear is an easy and reliable test to perform and the procedure takes only minutes to perform. So if this is your first Pap smear and pelvic exam, relax, we will explain the procedure, step by step. First, you will be asked to disrobe from the waist down and put on a hospital gown. The clinician will ask you to sit at the edge of an exam table. Then, when instructed, you place your feet in the stirrup-style foot rests and lie back on the table (like the women in labor depicted on TV or movies). The clinician will ask you to separate your thighs and stay calm so the muscles are relaxed.