When the environment is equal in solute concentration to the cell's internal environment then there is no net change in cell volume. This indicates a(n) ____________ solution around the cell.
A) hypotonic
B) hypertonic
C) isotonic
D) barometric
Ans: C) isotonic
Biology & Microbiology
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The function of the polymerase chain reaction in genetic engineering is to
A. link together newly joined fragments of DNA. B. cut DNA into many fragments. C. make multiple copies of a specific segment of DNA. D. separate fragments of DNA by their length and electrical charges. E. carry DNA into a new cell.
Biology & Microbiology
Which of the following early embryos would be the easiest to distinguish from the others?
a. bird b. honey bee c. human d. snake e. catfish
Biology & Microbiology
In nature, DNA recombination occurs but it is random and undirected
Indicate whether the statement is true or false
Biology & Microbiology
Immature B lymphocytes undergo clonal deletion in the bone marrow
Indicate whether the statement is true or false
Biology & Microbiology