Caitlin and George have a daughter with a rare genetic disease. They are considering using cells from their daughter's unborn brother to save her life
Explain two new technologies related to genetic screening and genetic control that may help, and how these technologies work.
What will be an ideal response?
With perimplantation genetic diagnosis (PGD), a newly fertilized embryo can be screened for a variety of genetic diseases before it is implanted in the woman's uterus to develop. In germ line therapy, cells are taken from an embryo and then replaced after the defective genes they contain have been repaired.
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What is another name for the sympathetic nervous system?
a. The central nervous system b. The use it or lose it system c. The love and honor system d. The fight or flight system
Holly likes to climb trees, play fighting games, and take charge on the playground. She describes herself as a typical tomboy. Holly's peers are likely to
a. ignore her behavior, figuring she'll stop eventually. b. encourage her behavior, viewing her as more fun than the more feminine girls. c. try to convince her to act more feminine. d. imitate her nontraditional behavior, so that she can see how ridiculous she looks.