Which group of colonial protists has the greatest relatedness to animals?
a. Ascomycetes
b. Green algae
c. Zygomycetes
d. Choanoflagellates
e. Amoebas
d
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The technique by which DNA, RNA, or protein molecules are separated in a gel that is subjected to an electric field is
called ____.
a. PCR b. biotechnology c. amplification d. a restriction enzyme digestion e. gel electrophoresis
Intermediate forms are often absent in characters showing qualitative variation
Indicate whether the statement is true or false.
How are human fossils classified into species?
A) by differences in DNA B) by differences in diet C) by differences in skin color D) by differences in the skeleton
In eukaryotes, a promoter that signals the beginning of the gene and binds with the promoter typically consists of
A) rRNA and tRNA. B) the bases TATAAA and response elements. C) the base sequence AUG and transcription factor binding sites. D) both DNA and RNA.