When cancer cells have the ability to migrate to other parts of the body, they are said to be
A. benign.
B. oncogenic.
C. metastatic.
D. genetic.
E. invasive.
Answer: C
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The mechanism for the spread of long interspersed nuclear elements (LINEs) involves some unique features, including _____
A) translation in the cytoplasm of an mRNA that was synthesized in the nucleus B) the nuclear localization of RNA polymerase C) the transport of mRNA from the cytoplasm to the nucleus D) the use of an enzyme that cuts DNA E) the use of RNA polymerase to transcribe an mRNA
If a certain stretch of DNA reads ATTACGAG, what would the corresponding tRNA sequence be?
What will be an ideal response?
Experiments called in vitro evolution or directed evolution have shown that:a
RNA can evolve into DNA. b. RNA can evolve to catalyze a variety of reactions. c. RNA can evolve into protein enzymes. d. DNA can evolve the double helix structure. e. RNA can evolve to self replicate.
Which of these organisms, sometimes called
living fossils, is represented by only one species?
a. horsetails b. club mosses c. liverworts d. ginkgos e. cycads