Biology Final Exam chapters 1,2,5 EXAM QUESTIONS AND ANSWER

Biology Final Exam chapters 1,2,5 EXAM QUESTIONS AND ANSWER joined by a phosphodiester bond to form the backbone of the DNA Double Helix - CORRECT ANSWER Nucleotide Created the double helix structure - CORRECT ANSWER Watson and Crick what are the nitrogenous bases? - CORRECT ANSWER adenine, thymine, cytosine, guanine the backbone of DNA - CORRECT ANSWER sugar phosphate group DNA strands are very - CORRECT ANSWER stable The 3 configurations of DNA - CORRECT ANSWER A, B, C the sequence of bases in DNA can be determined by the - CORRECT ANSWER Sanger Method How does electrophoresis compare DNA sequence ? - CORRECT ANSWER using a enzyme to cut DNA the sequence of bases in DNA can be determined by the - CORRECT ANSWER Sanger Method the DNA contained with a well defined nucleus( what type of cell) - CORRECT ANSWER Eurkaryote cells the DNA in a region called the nucleoid - CORRECT ANSWER Prokaryote compacted DNA strands - CORRECT ANSWER chromosomes a nucleotide consist of - CORRECT ANSWER ribose, phosphate, nitrogenous base eukaryote chromosomes are - CORRECT ANSWER linear prokaryote chromosomes are - CORRECT ANSWER circular During the S-phase , DNA replication occurs through the process of - CORRECT ANSWER Semi-conservative replication Is removing the removing the helix and breaking down DNA - CORRECT ANSWER Helicase what holds DNA together - CORRECT ANSWER Hydrogen bonds mesieson and stahl demonstrated semi-conservative replication by using various isotopes of - CORRECT ANSWER Nitrogen What does DNA ligase participate in? prokaryotes - CORRECT ANSWER putting the okisaki fragments together DNA polymerase II purpose..(prokaryotes - CORRECT ANSWER adds and removes nucleotide Builds DNA up and puts it together(prokaryotes) - CORRECT ANSWER Ligase part of DNA that is in inactive(eurkaryotes - CORRECT ANSWER telomerase