What causes delayed onset muscle soreness?
A) exercise in which a muscle lengthens while it contracts
B) walking on level ground
C) running on level ground
D) gentle stretching
A
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Which of the following is true regarding hagfish and lampreys?
A. They are characterized by a bony lower jaw. B. They are invertebrates. C. They are bony fish. D. They are vertebrates.
What is the role of cis-acting and trans-acting factors in transcription? Explain how these factors play a role in the lac operon, and discuss how complementation can be used to identify where the mutations have occurred (structural genes versus
regulatory regions). Which type of mutations can be complemented by a second gene with normal function? Are IS and OC mutants cis- or trans-acting?
Assume that a researcher conducted a cloning experiment using a typical plasmid, transformed an appropriate host bacterial strain, and plated the bacteria on an appropriate X-gal medium. Blue and white colonies appeared
Which of the two types of colonies, blue or white, would more likely contain the recombinant plasmid? Why?
If the codon is CCA, what is the anticodon and what amino acid will be inserted?
A. CCA, proline B. GGT, glycine C. ACC, threonine D. UGG, tryptophan E. GGU, proline