Which structure helps prokaryotic cells attach to substrates and aid in the exchange of genetic information between cells?
A. flagella
B. nucleoid
C. pili
D. ribosome
E. capsule
Answer: C
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All living species in the Osteichthyes clade have endoskeletons composed entirely of cartilage
a. True b. False
Chromosomes are duplicated during what stage of
the cell cycle? a. M b. D c. G1 d. G2 e. S
Antiviral drugs that target reverse transcriptase would be used to treat infections caused by ________.
A. herpes zoster virus B. HIV C. respiratory syncytial virus D. hepatitis C virus E. influenza A virus
You would like to induce a transversion mutation into a sequence of DNA. Which type of chemical mutagen would give you the best chance of inducing the correct mutation without causing transition mutations as well?
A) base analog B) deaminating agent C) oxidative agent D) alkylating agent E) intercalating agent