On a phylogenetic tree, more closely related species branch from points ______ to the tips of the tree
A. closer
B. farther
C. equal to
D. unrelated to
A
Biology & Microbiology
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RFLP fragments are short, only 100 bases long.
a. true b. false
Biology & Microbiology
Which of the following would most likely
contain blood that needs to be cleansed?
a. the renal vein b. the renal artery c. the nephron d. all of these e. none of these
Biology & Microbiology
When DNA is heated to just below boiling (90°C-95°C),
A. the helix unwinds but hydrogen bonds between the bases remain intact. B. the sugar, phosphate, and base come apart in each nucleotide. C. the two DNA strands separate completely. D. nothing happens until the boiling point is reached (100°C). E. the sugar phosphate backbone of the DNA strands breaks.
Biology & Microbiology
Ruminants' stomachs have microbes to digest:
a. starch b. proteins c. cellulose d. lignin e. lipids
Biology & Microbiology