One reason that each individual has unique genetic information is
A. asexual reproduction.
B. the environment.
C. genetic recombination.
D. mitosis.
C. genetic recombination.
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The mechanism of muscle contraction was first studied in ____ muscle using high-resolution ____ microscopy
a. skeletal; light b. smooth; light c. skeletal; electron d. smooth; electron e. cardiac; electron
In order to express eukaryotic genes in a bacterium, the ________ must first be removed.
A. introns B. 3' poly A sequence C. exons D. enhancers
Which of the following junctions is most abundant in tissues such as skin that are required to resist significant mechanical stress?
A) gap junctions B) desmosomes C) focal adhesions D) tight junctions E) All are abundant in tissues resisting stress.
Which tissue system of the plant body is largely responsible for photosynthesis?
a. ground tissue system
b. vascular tissue system c. dermal tissue system d. primary tissue system e. secondary tissue system