Genetically modified food has raised some concerns because
A. it contains radioactive particles.
B. it may contain some unanticipated allergens.
C. it may have some unintended environmental effects.
D. the modified DNA may transfer to other organisms.
E.
it may contain some unanticipated allergens, it may have some unintended environmental effects, AND the modified DNA may transfer to other organisms.
E
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Why did most scientists assume that the bases of DNA should be on the outside of the helix?
a. the bases were easily digested by DNA cutting enzymes b. the hydrogen bonding between sugar and phosphate would form a helix as well c. the bases needed to be accessible for replication d. a single-stranded DNA molecule would not be able to support the bases on the interior e. the bases were hydrophobic
Which of the following are necessary for DNA replication in vitro?
A) RNA, helicase, primers, DNA polymerase B) Okazaki fragments, helicase, DNA polymerase C) Template DNA, DNA polymerase, four dNTPs, primers, magnesium ions D) Template DNA, four dNTPs, magnesium ions E) DNA can't replicate in vitro
Which one of the following of the following statements is FALSE?
A) Science is a process. B) Scientists use the scientific method to gain knowledge about the natural world. C) Because scientific knowledge is empirical, it cannot be tested. D) Knowledge gained through the scientific method can be used to predict the natural world. E) The scientific method involves many different ways of obtaining information.
Discuss the sexual and asexual reproduction of Rhizopus, the black bread mold. Include the names of the structures
involved. What will be an ideal response?