Biology, 02.07.2019 02:30 ahmedeldyame
Researchers performed an experiment to investigate dna replication. first, they synthesized radioactively-labeled nucleotides, which are nucleotides that contain radioactive elements that allow them to be visualized. then, they inserted the radioactively-labeled nucleotides into a cell. when the cell divided, it incorporated the radioactively-labeled nucleotides into its dna during dna replication. the following image shows the cell's dna before and after replication. the original dna strands are shown in blue and the dna strands with the radioactively-labeled nucleotides are shown in orange. which statement is best supported by the results of this experiment? a. cell division produces four identical dna strands. b. several proteins are involved in dna replication. c. dna replication is a semiconservative process. d. the two dna strands are replicated in opposite directions.
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Biology, 22.06.2019 04:10
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
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Biology, 22.06.2019 06:50
Which organelle breaks down sugar molecules that supply energy to the cell ?
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Biology, 22.06.2019 13:00
What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root
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Researchers performed an experiment to investigate dna replication. first, they synthesized radioact...
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