Which chemical is not a part of DNA?
A) phosphate
B) ribose
C) cytosine
D) nitrogen
B) ribose
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When DNA is replicated, ____
a. parental histones are degraded and entirely replaced by new histones b. DNA is permanently freed from histone binding
c. the histone proteins are also replicated d. only some of the histone proteins are replicated e. the number of histones that bind to each DNA molecule is halved
After DNA repair enzymes remove an incorrect nucleotide resulting from a replication error, ____ is/are needed to
complete the repair.
a. primase, DNA polymerase, and DNA ligase b. DNA polymerase c. DNA polymerase and DNA ligase d. primase and DNA ligase e. primase and DNA polymerase
Which group of organisms is the main competition to humans for food and plants? a. Cattle b. Birds c. Insects d. All compete equally with humans for food
e. Arthropods
Having legs longer than your arms is an example of:
a. an allometric growth pattern. b. an allopatric growth pattern. c. an adaptive growth pattern. d. paedomorphosis. e. a preadaptation.