Vectors used in recombinant DNA technology
A. are self-replicating forms of DNA carriers.
B. are always circular DNA molecules.
C. deliver DNA to cells for replication.
D. are self-replicating forms of DNA carriers and deliver DNA to cells for replication.
E. are always circular DNA molecules and deliver DNA to cells for replication.
D
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Antiparallel means that
A) the two polynucleotide chains run in opposite directions. B) each DNA molecule consists of one old and one new strand. C) opposite strands are held together by base pairing. D) the helix twists to the right. E) there is complementary base-pairing.
Design a complete ecosystem that would sustain a number of living organisms for several years in a sealed container
The only thing that can be added is sunlight. Explain why you have selected each organism. What will be an ideal response?
A change in a cell's DNA sequence is
What will be an ideal response?
A karyotype is most like
A) a map showing the hidden location of buried treasure. B) a movie showing the stages of the reproductive cycle of a beetle. C) photographs of every couple at a high school prom. D) the answer key to a multiple-choice exam.