Biol 105 - molecular mechanisms of training

Choose the correct answer for each question.

1 The tertiary structure of a protein: Refers to how many subunits it has Can be altered by binding of ions or other proteins Is the sequence of amino acids that make up the protein Refers to how hydrophobic the protein is All of the above 2 The central dogma of molecular biology states that: DNA is transcribed to RNA which is translated to protein DNA is translated to protein which is transcribed to RNA DNA is translated to RNA which is transcribed to protein. All physiologists wear funny socks. None of the above. 3 To act as a transcription factor, cortisol must first: Change the rate of protein translation. Be translocated into the cell cytoplasm Splice the exons out of the DNA. Bind to an intracellular receptor. None of the above. 4 An increase in mRNA stability will lead to: More protein translated. Greater need for RNA splicing Possible release of heat shock proteins Some redundancy in the nucleotide code. All of the above. 5 One consequence of the triplet code is More than one amino acid sequence codes for each nucleotide The reading frame of the nucleotide sequence is irrelevant. The RNA sequence can be predicted exactly if the amino acid sequence of a protein is known. All 20 amino acids are coded for by at least three triplets. None of the above.