An original section of DNA has the base sequence AGCGTTACCGT. A mutation in this DNA strand results in the base sequence AGGCGTTACCGT. This change represents _____
A) a missense mutation
B) a point mutation
C) a silent mutation
D) frameshift mutation
D
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As humans move into an area, the habitat often becomes fragmented due to clearing of land to
build homes and roads, while leaving small areas of natural habitat. For small species that cannot navigate long distances from one habitat fragment to the next, speciation will likely occur due to __________ barriers.
a. geographical b. temporal c. behavioral d. geographical and temporal
The target tissue for erythropoietin is ____
a. brain b. kidney c. liver d. bone marrow e. lungs
Dividing cells are found in all of the following except:a
apical meristems. b. lateral meristems. c. vascular cambium. d. cork cambium. e. fiber ce
The term that Darwin used to describe the concept that those with superior physical, behavior or other attributes are more likely to survive than those that are not so well endowed, and thus are more likely to pass their traits to the next generation, is called:
A. superior beings B. biological diversity C. natural selection D. survival of modifications E. geometric progression