The contraction phase of the cardiac cycle is known as ____
a. systole
b. diastole
c. cardiac output
d. mean arterial pressure
e. pulse pressure
ANSWER: a
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Antibiotics can kill ________________ in the human body, which may sometimes lead to health problems such as inflammatory bowel disease
A. harmful bacteria B. beneficial bacteria C. both harmful and beneficial bacteria D. fungi E. archaeons
If a pedigree analysis suggests that an autosomal or X-linked inheritance pattern is equally likely, then additional genetic testing is needed to identify the pattern of inheritance
a. True b. False Indicate whether the statement is true or false
The above figure demonstrates
a. imprinting behavior. b. displaying instinctive behavior. c. feeding a social parasite. d. a learned behavior. e. all of these.
The Bcl-2 gene product in its normal form can be activated to prevent cells from undergoing apoptosis (programmed cell death) in specific circumstances. It is a carefully regulated gene, being "turned on" only under specific circumstances
A null mutation in Bcl-2 leads to excessive cell loss. Some Bcl-2 mutation can cause a "gain of function" in which the protein is active all the time. a. In the terms used in this chapter, what would the normal version be called? b. What would the gain-of-function mutation be called? c. How would you expect the gain-of-function mutation to be involved in cancer?