What would be the karyotypic designation of a female with trisomy for the X chromosome?
____________________ Fill in the blank(s) with the appropriate word(s).
ANS: 47, XXX
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Most plant cells are pluripotent, meaning that they
a. constantly switch tissue types throughout their lives. b. cannot change after differentiating into a specific cell type. c. end up as a hybrid of tissue types. d. can function in any environmental condition. e. retain the ability to change cell types when necessary.
The only way to meet the resource needs of
future generations is through
a. sustainable resource use. b. biological magnification. c. creating conservation hotspots. d. clear cutting and mining. e. increasing use of nonrenewable resources
These bacteria can live in water of very high salt concentration.
Which of the following statements regarding the association of hepatitis B with liver cancer is FALSE?
A. Geographic areas with a high incidence of liver cancer also have a high prevalence of hepatitis B. B. The HBV genome has been found integrated into hepatic cancer cells. C. Hepatic cancer cells typically express HBV antigen. D. Chronic carriers of the virus are 200 times more likely to develop hepatic cancer. E. Vaccination does not provide protection against the development of hepatic cancer.