Many sponges are hermaphroditic, which means that ____
a. both males and females are filter feeders
b. both males and females produce sperm
c. a single individual produces both sperm and eggs
d. only males have flagellae
e. both males and females produce gemmules
ANSWER: c
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Viruses that are polyhedrons with 20 sides are said to have ________ symmetry.
Fill in the blank(s) with the appropriate word(s).
The very first DNA sequencing technology called the Sanger method relies on
A) nanopore technology that separates DNA molecules based on charge differences. B) the incorporation of dideoxynucleotides that terminate chain extension during DNA synthesis. C) nuclear magnetic resonance (NMR) analysis. D) the release of protons whenever a new nucleotide is added to a growing strand of DNA.
The equation A-PO4 + B ? A + B-PO4 would be catalyzed by which of the following classes of enzymes?
A) transferases B) oxidoreductases C) hydrolases D) ligases E) isomerases
A problem may result from allowing the slides to dry during the gram staining process
a. true b. false