DNA Structure and Replication Which of the following is an active site on its single polypeptide chain for DNA Polymerase I? 5' → 3' polymerase 3' → 5' exonuclease All of these 5' → 3' exonuclease 5' → 3' polymerase 3' → 5' exonuclease All of these 5' → 3' exonuclease ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Nucleosome is an hexamer of three histones without H1 protein an octamer of four histones with H1 protein an hexamer of three histones with H1 protein an octamer of four histones without H1 protein an hexamer of three histones without H1 protein an octamer of four histones with H1 protein an hexamer of three histones with H1 protein an octamer of four histones without H1 protein ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Telomeres are usually rich in which nucleotide? Cytosine Adenine Thymine Guanine Cytosine Adenine Thymine Guanine ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication Without telomerase, what would happen to the ends of chromosomes after each round of replication? Chromosomes would get longer Chromosomes would become progressively shorter None of these Nothing would happen Chromosomes would get longer Chromosomes would become progressively shorter None of these Nothing would happen ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication In the study of one experiment it was found that the value of Tm for DNA is = 40° C. If the cell has 20% GC at the above Tm, then what will be value of 'Tm' if the GC% increases to 60%? Increases Can not be compared Remains same Decreases Increases Can not be compared Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
DNA Structure and Replication What does ligase do during replication of DNA? Joins nicks in DNA strands Digests mRNA when it is no longer needed Synthesizes the lagging strand Makes copies of mRNA from DNA Joins nicks in DNA strands Digests mRNA when it is no longer needed Synthesizes the lagging strand Makes copies of mRNA from DNA ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS