A permanent, inheritable change in the genetic information is called a(n)
A. translation.
B. alteration.
C. mutation.
D. regeneration.
E. transcription.
Answer: C
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RNA viruses can use their RNA to produce DNA
because they carry __________ enzymes. a. reverse transcriptase b. restriction c. endonuclease d. polymerase e. ligase
Four of the five answers listed below are related by a common phase of mitosis. Select the exception
a. chromosomes align at the spindle equator b. sister chromatids become individual chromosomes c. centromeres divide d. the chromosomes move apart e. spindle microtubules shorten, pulling chromosomes toward the poles
The presence of a suntan is due to increased activity of ________ in response to increased levels of ultraviolet radiation
Fill in the blank(s) with correct word
Since snakes, people, and fish all like to eat frogs, this is an example of a
A. food web. B. food chain. C. preference test. D. trophic level variation.