What is another term for a biological catalyst?
A) codon B) ribosome C) lipid D) enzyme E) protein
Answer: D
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How could overlapping genes in a positive ssDNA virus genome be predicted?
A) Convert the positive ssDNA into its complementary ssDNA and search for genes in the negative ssDNA strand for sequences used in more than one predicted gene. B) Directly search the three frames of the positive ssDNA for genes that have sequences where more than one gene is predicted. C) Convert the positive ssDNA into negative ssDNA and search all six possible frames for genes that use part of the same sequence. D) Convert the positive ssDNA into its complementary ssDNA and search for genes in the negative ssDNA strand that also share a complementary gene in the positive strand.
Which of the following statements regarding transcription only apply to eukaryotes and not to prokaryotes?
A. A single RNA polymerase transcribes genes that encode mRNAs, tRNAs, and rRNA. B. Sigma (?) subunit detaches from RNA polymerase shortly after transcription has initiated. C. The C-terminal domain of the polymerase is phosphorylated after transcription has initiated. D. RNA synthesis is inhibited by actinomycin D. E. RNA synthesis is inhibited by rifampicin.
It is quite common to ingest trace amounts of aflatoxins when one eats
a) fruit. b) meat. c) peanuts. d) cheese.
The skin microbiome is NOT affected by
a. hygiene. a. nutrition. b. location on the skin. c. weather. d. antibiotics.