Ribosomes are very old structures, found in all organisms (except viruses), from bacteria to humans. As a result, molecular taxonomists are looking at relationships based upon which rRNA sequence(s)?
A) 16S
B) 18S
C) 30S
D) both choices A and B
E) all of the above
D) both choices A and B
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An individual basidium ultimately produces
A. eight diploid spores. B. four genetically identical haploid spores. C. four haploid spores, each genetically different. D. eight identical haploid spores. E. eight haploid spores, of which there are two each of four different genetic types.
if a pea plant is heterozygous for yellow seeds (Gg), the gametes will have which of the following allele(s)?
A. G only B. G or g C. g only D. Gg E. GGgg
The nonprotein component of an enzyme that is firmly attached to the protein is called a(n)
A. holoenzyme. B. coenzyme. C. prosthetic group. D. apoenzyme.
Members of which prokaryotic domain are most closely related to eukaryotes evolutionarily?
A. Animals B. Protists C. Fungi D. Bacteria E. Archaea