The cervix is
a. the upper part of the uterus.
b. the lowest part of the bladder.
c. the lowest part of the uterus.
d. connected to the fallopian tubes.
e. the entire uterus
C
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While developing a new hybridization-based molecular test for Cryptosporidium, a protozoan parasite that causes diarrheal illness, a laboratory technician examines the hybridization ability with a closely related, but nontarget, protozoan and also gets a positive test result. In order to improve the stringency of the hybridization reaction for detection of Cryptosporidium only, the technician can
do which of the following? a. Decrease the salt concentration in the hy-bridization buffer b. Increase the salt concentration in the hy-bridization buffer c. Reduce the reaction temperature during hybridization d. Remove destabilizing agents, such as formamide, from the hybridization buffer e. None of the above
PET (positron-emission tomography) scans use radioisotopes attached to what substances to detect
abnormalities? a. other radioisotopes b. subatomic particles c. carbon atoms d. glucose or other biological molecules e. plutonium
When a the results of an experiment support a hypothesis, the hypothesis can now be considered a theory.
Answer the following statement true (T) or false (F)
What pH conditions favor the growth of most bacteria?
A. pH 2 B. pH 5 C. pH 7 D. pH 9 E. Bacteria can grow at all ranges of pH.