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He didn't, the fifty states came together slowly joining the original thirteen over a period of a couple of hundred years

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Sex-linked diseases are more likely to affect sons of female carriers because why?

The son would automatically get the Y chromosome from the father. The son's X chromosome has to come from his mother. Females are XX, so he has a fifty-fifty chance of receiving the disease carrying gene. If he receives the disease carrying gene he will have the disease, if he doesn't then he will neither have the disease nor be a carrier. A daughter has to receive one X chromosome from her father and one from her mother. If the father doesn't have the disease, then the daughter cannot have it. If the mother is a carrier, then she has a fifty-fifty chance of being a carrier.


What is the average swimming time fifty meters butterfly eleven year old girls?

The average swimming time for fifty meters butterfly for eleven-year-old girls is usually around 35-45 seconds. However, times can vary greatly depending on the individual's level of training and experience.


From which parent does the hair gene come?

Genes come from both parents and are molded together to make a unique person. To make a long answer short, the color of your hair doesn't "come from" one parent or the other; there is a fifty-fifty chance that you have the same color hair as your mother or your father. In fact, the odds might be different depending on whether one of your parents has a dominant hair color gene in the family. For instance, say your mother's side of the family is all blond, especially both of her parents; this probably means that her genes are dominantly blond. If your father's side of the family has some scattered brunettes and redheads, then his hair probably isn't dominant. If one of your parents has a dominant hair color, then it is more likely that you will have that one, too. Also, some genes can skip generations through chance, which might explain why a child has the same color hair as her grandmother, but not her mother.


How long can a person live with brain trauma?

It depends on the brain trauma, if it is deep and penetrating then chances are slim, could be thirty minutes to four hours, to several weeks; if it is blunt it could be fifty-fifty, it depends on several factors. No matter how much medicine tries to learn and do to help one recover from brain trauma there is no golden or set rule for this kind of phenomenen, just like each person has a different personality, each persons brain responds differently to pressure and injury. :-D


A father has type O blood and the mother has type AB blood What percent of the offspring should have type A blood?

A woman with type AB blood has both alleles that give blood both the A antigens and the B antigens, but the man with type O blood has both of the alleles that lack these antigens. Because the child will receive one allele from the mother and one from the father, none of their children will have AB or O blood.