Biology, 12.12.2019 07:31 kmontanab00
3. which one of the following statements best describes the first thing researchers need to do to manipulate
dna?
a. restriction enzymes would be used to cut the dna into smaller pieces.
b. single-stranded dna fragments would be placed with dna polymerase in a test tube.
c. researchers would need to separate synthesized strands by size on a gel.
d. gel electrophoresis would be used to separate fragments of dna.
Answers: 2
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The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?
Answers: 2
3. which one of the following statements best describes the first thing researchers need to do to ma...
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