DNA Structure and Replication After one replication in 15N, how many bands should be observed in a cesium chloride gradient? One Two A smear Three One Two A smear Three 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 only one chromatid of a chromosome was labeled both (a) and (b) both chromatids of a chromosome were labeled neither chromatid was labeled only one chromatid of a chromosome was labeled both (a) and (b) both chromatids of a chromosome were labeled neither chromatid was labeled ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What does ligase do during replication of DNA? Digests mRNA when it is no longer needed Synthesizes the lagging strand Joins nicks in DNA strands Makes copies of mRNA from DNA Digests mRNA when it is no longer needed Synthesizes the lagging strand Joins nicks in DNA strands Makes copies of mRNA from DNA ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication One hypothesis of DNA replication suggested that the parental DNA molecules are broken into fragments. Both strands of DNA in each of the daughter molecules are made up of an assortment of parental and new DNA. This statement refers to which hypothesis? Semi-conservative theory Dispersive theory Conservative theory Evolutionary theory Semi-conservative theory Dispersive theory Conservative theory Evolutionary theory ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication An enzyme that recognizes foreign DNA, and results in a cut in that DNA is called restriction endonuclease transposase helicase reverse transcriptase restriction endonuclease transposase helicase reverse transcriptase ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The site on a bacterial chromosome that marks the initiation point for chromosome replication is called Pro Ori a promoter an initiation codon Pro Ori a promoter an initiation codon ANSWER DOWNLOAD EXAMIANS APP
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