After a strand of DNA has been cut with restriction enzymes, the pieces are attached again by the action of
A) DNA ligases.
B) stop codons or sequences.
C) DNA polymerase.
D) plasmids.
E) primers.
A
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Which genetic disorder is governed by a single gene?
a. Cystic fibrosis b. Albinism c. Huntington's syndrome d. Sickle Cell anemia e. All are governed by a single gene.
Which of the following would contribute to a negative feedback loop that would reduce atmospheric CO2?
A) increased terrestrial NPP B) decreased terrestrial NPP C) increased CO2 emissions D) decreased oceanic NPP
Throughout the cell cycle different process can be observed. Which of the following processes occur during Gap 1?
A) production of daughter cells B) cytokinesis C) normal growth D) DNA replication
Which of the following is NOT involved in the regulation of the lac operon?
A. an inducer B. a repressor protein C. an miRNA D. glucose E. cyclic AMP