In choosing the vector used to carry human genes into a host cell, which of the following should be the important consideration?

A. Whether the vector contains RNA or DNA
B. Whether the vector comes from a bacterium or a virus
C. What kind of plasmid it is
D. How much donor DNA can be carried on the vector


Answer: D

Biology & Microbiology

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Which of the following is NOT correct regarding the purple photosynthetic bacteria photosynthetic apparatus?

A. Possesses bacteriochlorophylls a or b B. Performs anoxygenic photosynthesis C. Has intracytoplasmic membranes (ICMs) to provide space for photosynthetic units (PSUs) D. Apparatus is continuous with the plasma membrane E. Apparatus is straight to decrease surface area and contain reactions

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Insertion of two bases into the coding region of a gene just after the start codon of a gene will result in

a ____ mutation.

a. missense b. chromosomal c. frameshift d. silent e. nonsense

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What are the two categories of gain-of-function mutations?

What will be an ideal response?

Biology & Microbiology

________ include cells that can function either independently or as a single unit

A) Dinoflagellates B) Forams C) Seaweeds D) Cellular slime molds

Biology & Microbiology