Define the purpose of inserting a gene into a plasmid cloning vector
What will be an ideal response?
ANSWER: After inserting a gene into a cloning vector, the recombinant plasmid can be transformed into
bacterial host cells. Here, hundreds of copies of the gene can be generated very easily by DNA replication when the bacteria divide. This allows the gene or DNA of interest to be
produced in amounts that can then be used in other applications, such as restriction enzyme
digestions or sequencing. If the protein-coding region of a gene is combined with an
expression vector, mass production of its protein product is possible by transcription and
translation in the host cell.
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Plasma cells release ________ that attach to an invading microbe, marking it for destruction.
A. interleukin-2 B. perforin molecules C. histamine D. antibodies
Is it possible for humans to have immunity to HIV infections and, if so, how?
a. Yes, by expressing a non-HIV binding variant of CCR5 b. No, it is not possible. c. Yes, because the body develops immunity after multiple infections. d. None of the above is correct.
Contrast animal relationships based on molecular data versus based on morphological and
developmental data.
What will be an ideal response?What color develops when biuret reacts with proteins in a sample?
a. Blue b. Blue-green c. Purple d. Red