In the Ames test, any colonies that form on the control should be the result of spontaneous mutations
Indicate whether the statement is true or false
TRUE
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An individual can receive injections of an antiserum or purified antibodies derived from an immune individual
Indicate whether the statement is true or false.
The charge on amino acids in the active site of an enzyme would be affected by ___.
A. temperature B. substrate concentration C. pH D. antibiotics
Cyclins function by ________.
Fill in the blank(s) with the appropriate word(s).
Linnaeus and other early scientists classified organisms based on visible traits. Today, scientists generally use cladograms based on DNA and other evolutionary evidence to classify organisms. Why have most scientists changed their method of classification?
a) DNA evidence supports the idea that species that look similar are always more closely related than species that do not b) cladograms are relatively small and the information in them is easy to manage c) cladograms can compare more animals at one time than traditional classification methods d) DNA evidence often shows that species that share characteristics but look different can be more closely related than species that look alike