DNA Structure and Replication What is the range of melting point temperatures (Tm) for most DNA molecules? 50 to 60°C 70 to 90°C 60 to 80°C 80 to l00°C 50 to 60°C 70 to 90°C 60 to 80°C 80 to l00°C ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Taylor, Woods and Hughes labeled Vicia DNA by allowing new DNA synthesis in the presence of radioactive thymine. After DNA replication (S phase of the cell cycle), it was observed that both (a) and (b) neither chromatid was labeled only one chromatid of a chromosome was labeled both chromatids of a chromosome were labeled both (a) and (b) neither chromatid was labeled only one chromatid of a chromosome was labeled both chromatids of a chromosome were labeled ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The enzyme responsible for breaking the hydrogen bonds, and thus separating the DNA strands during DNA synthesis is helicase DNA polymerase strandase none of these helicase DNA polymerase strandase none of these ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Which of the following is not a structural motif in DNA binding proteins? TFIID zinc finger bZIP helix-turn-helix TFIID zinc finger bZIP helix-turn-helix ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The overall conclusion of the Hershey-Chase experiment was that proteins and DNA were responsible for heredity phage DNA was similar to bacterial DNA the ratio of Adenine to thymine was always the same DNA was responsible for heredity proteins and DNA were responsible for heredity phage DNA was similar to bacterial DNA the ratio of Adenine to thymine was always the same DNA was responsible for heredity ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What does ligase do during replication of DNA? Joins nicks in DNA strands Synthesizes the lagging strand Digests mRNA when it is no longer needed Makes copies of mRNA from DNA Joins nicks in DNA strands Synthesizes the lagging strand Digests mRNA when it is no longer needed Makes copies of mRNA from DNA ANSWER DOWNLOAD EXAMIANS APP
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