DNA Structure and Replication When DNA polymerase is in contact with guanine in the parental strand, what does it add to the growing daughter strand? Phosphate Cytosine Uracil Guanine Phosphate Cytosine Uracil Guanine ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What is the approximate percentage of repetitive DNA sequences in human DNA? 40 to 50% 20 to 30% 10 to 20% 30 to 40% 40 to 50% 20 to 30% 10 to 20% 30 to 40% ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What does ligase do during replication of DNA? Digests mRNA when it is no longer needed Makes copies of mRNA from DNA Synthesizes the lagging strand Joins nicks in DNA strands Digests mRNA when it is no longer needed Makes copies of mRNA from DNA Synthesizes the lagging strand Joins nicks in DNA strands ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The rapid appearance of HIV-1 strains that are resistant to AIDS drugs is due in part to which of the following property of its reverse transcriptase? The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease It has low affinity for the correct dNTP's AZT (zidovudine) is too expensive to be taken in effective doses The RNase H domain of p66 causes error prone synthesis It lacks a proofreading exonuclease It has low affinity for the correct dNTP's AZT (zidovudine) is too expensive to be taken in effective doses ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The accepted hypothesis for DNA replication is dispersive theory conservative theory semi-conservative theory evolutionary theory dispersive theory conservative theory semi-conservative theory evolutionary theory ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication The higher order structure of DNA shows symmetry, whereas the higher order structures of most proteins do not. Why isn't protein shape more regular like DNA? DNA has one main function in cells whereas proteins have many. All of these The many different amino acid R groups on proteins confer many different shapes. Some S amino acids cause proteins to bend; others cause protein to flatten. DNA has one main function in cells whereas proteins have many. All of these The many different amino acid R groups on proteins confer many different shapes. Some S amino acids cause proteins to bend; others cause protein to flatten. ANSWER DOWNLOAD EXAMIANS APP
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