The relatedness of organisms determined by counting common characteristics
A.
is called evolutionary taxonomy.
B.
is called amino acid sequences.
C.
is called DNA sequences.
D.
is called numerical taxonomy.
E. suggests the organisms are very closely related at the species level AND means the GC content is 45%.
D
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Oxygen-16 is abundant and has 8 protons and 8 neutrons. Oxygen-18 has two extra neutrons. These two forms are:
A. oxygen ions. B. oxygen dimers. C. oxygen isomers. D. oxygen isotopes.
The chemical group in box 5 of the accompanying figure is a:
a. hydrogen bond.
b. phosphate.
c. nucleotide.
d. pyrimidine.
e. protein
During ________, a ribosome assembles a polypeptide whose amino acid sequence is specified by the nucleotide sequence in a molecule of mRNA.
A. translation B. posttranscriptional modification C. replication D. transcription
A BAC of 0.08% is equivalent to ___ grams of alcohol per 100ml of blood.
Fill in the blank(s) with the appropriate word(s).