Essential Idea: Genetic information in DNA can be accurately copied and can be translated to make the proteins needed by the cell. |
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Q1-3: These questions are about Meselon and Stahl’s DNA replication experiments.
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1. These experiments showed that DNA replication was ...
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2. Meselon and Stahl grew E. Coli in a medium containing 15N for several generations. Which part of the DNA molecule contains 15N?
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3. After transferring the bacteria to 14N they were grown and centrifuged and separated according to their density. After three generations what % of bacteria would contain only 14N ?
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4. The first enzyme involve in DNA replication is helicase. This enzyme ...
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5. For a new strand of DNA to be made, which of the following is not required?
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6. Why is Taq DNA polymerase used in PCR (Polymerase Chain Reaction)?
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7. Which is the correct order for the process of transcription and the formation of mRNA?
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8. How many codons are in this section of mRNA ACCUGGCAUAGC ?
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9. Which is the DNA base sequence for the strand of mRNA with the sequence UUAGGCAAU?
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10. As more than one codon may code for an amino acid the code is known as
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