QBM Exam 1 (Chapters 1-6) Questions With 100% Correct Answers

QBM Exam 1 (Chapters 1-6) Questions With 100% Correct Answers DNA strands are ______ to one another - answerantiparallel Each strand is ____ charged and has a ______ backbone - answernegatively, phosphate The phosphate backbone of DNA runs in what direction? - answer5'-3' What are the nucleotide base pairings? - answeradenine with thymine, guanine with cytosine DNA bases are held together by _____ and ______ - answerhydrogen bonds and base stacking DNA is copied by _____ - answerDNA polymerase DNA is copied during what phase of cell division? - answerThe S phase DNA is transcribed to mRNA by what? - answerRNA polymerase What translates the RNA message into protein? - answerribosomes Small pieces of DNA that can be used to determine presence of an allele are called ______ - answerProbes How are probes useful? - answerGenerating pedigrees, paternity testing, forensics, predisposition to specific disease Advanced probe-based systems called _____ can analyze and entire genome - answermicroarrays Proteins consist of amino acids linked by _____ bonds - answerpeptide A negatively charged amino acid is ______ - answeracidic A positively charged amino acid is ______ - answerbasic Protein synthesis by the ribosome goes from the _-terminus to the _-terminus. - answerN (amino) to C (carboxyl) The primary structure of a protein is its _____ - answeramino acid sequence Secondary structures can be formed such as ____ and ____ - answera-helices and B-helices What kind of protein model represents what proteins actually "look" like? - answermolecular surface model Quaternary structures are formed by _____ - answermultiple polypeptide chains Protein p-53 is a _____ suppressor that is activated upon cell ______ - answercancer, damage Research labs must follow the rules set by _____ - answerOSHA - Occupational Safety and Health Administration OSHA states that employers must inform employees of _____ and every hazardous substances has a _____ - answerhazards, MSDS - Material