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What is a method of vertical gene transmission? |
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Frederick Griffith did experiments on genetic transformation. What statement about his experiments is accurate? |
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Griffith found that DNA released from dead (virulent) bacteria entered live (avirulent) bacteria and changed them genetically, causing them to become virulent. |
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Which of the following enzymes unwinds the two strands of DNA so that they can be copied during replication? |
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Random, heritable genetic mutations are a necessary for what to occur? |
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This variation is necessary for natural selection to occur |
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Deleting or inserting one nucleotide pair in the middle of a gene is an example of what? |
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What is a DNA strand complementary to CGA ATC AGC? |
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All types of RNA in the cell are synthesized by what, which uses a portion of DNA as a template for copying. |
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what is made by copying specific regions of DNA called genes. Ribosomes use mRNA as instructions, which provide a code specifying the order of amino acids in a protein. |
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two strands of nucleotides running antiparallel |
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Which of the following is NOT a product of transcription? tRNA mRNA rRNA a new strand of DNA All of these are products of transcription |
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Transformation is the transfer of DNA from a donor to a recipient cell
as naked DNA in solution. by cell-to-cell contact. by crossing over. by sexual reproduction. by a bacteriophage. |
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as naked DNA in solution. |
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Conjugation differs from reproduction because conjugation
transcribes DNA to RNA. copies RNA to make DNA. transfers DNA horizontally, to cells in the same generation. replicates DNA. transfers DNA vertically, to new cells. |
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transfers DNA horizontally, to cells in the same generation |
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The necessary ingredients for DNA synthesis can be mixed together in a test tube. The DNA polymerase is from Thermus aquaticus, and the template is from a human cell. The DNA synthesized would be most similar to
human DNA. T. aquaticus DNA. a mixture of human and T. aquaticus DNA. human RNA. T. aquaticus RNA. |
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An enzyme that copies DNA to make a molecule of RNA is |
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true or false: Bacteria typically contain multiple chromosomes |
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What are the products of semiconservative replication for a double-stranded DNA molecule? |
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Two double-stranded DNA molecules, each consisting of one parental strand and one daughter strand |
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Why is DNA replication essential for a cell? |
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An organism must copy its DNA to pass genetic information to its offspring |
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What is the function of the parental DNA in replication? |
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It serves as the template for DNA replication |
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Transcription produces what? |
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mRNA, tRNA, and rRNA are all produced by transcription |
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What is involved in bringing amino acids to the ribosomes |
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What is the initial target of RNA polymerase? |
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RNA polymerase is guided by what? |
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