A codon consists of _____ bases and specifies which _____ will be inserted into the polypeptide chain.
What is the process called that converts the genetic information stored in DNA to an RNA copy?
Transcription begins at a promoter. What is a promoter?
Which of the following statements best describes the promoter of a protein-coding gene?
What determines which base is to be added to an RNA strand during transcription?
Which of the following terms best describes the relationship between the newly synthesized RNA molecule and the DNA template strand?
What happens to RNA polymerase II after it has completed transcription of a gene?
What is the function of RNA polymerase?
Where does RNA polymerase begin transcribing a gene into mRNA?
Based on this information, what is the minimum size of a codon for these hypothetical Martian life-forms?
For any given gene, what ultimately determines which DNA strand serves as the template strand?
Which three statements correctly describe the processing that takes place before a mature mRNA exits the nucleus?
During RNA processing a(n) _____ is added to the 3' end of the RNA.
After an RNA molecule is transcribed from a eukaryotic gene, what are removed and what are spliced together to produce an mRNA molecule with a continuous coding sequence?
How would this molecule have to be altered, to be used in RNA transcription?
Which of the following statements about ribozymes is/are correct?
The average length of a transcription unit along a eukaryotic DNA molecule is about 27,000 nucleotide pairs, whereas an averaged-sized protein is about 400 amino acids long. What is the best explanation for this fact?
Which of the following mutations would likely be most dangerous to a cell?
Which of the following molecules is/are produced by translation? Include molecules that are subject to further modification after initial synthesis.
Which of the following mutations would be most likely to have a harmful effect on an organism?
Which of these is currently considered the best definition of a gene?
Which of the following statements about mutations is false?
Which mutation(s) would not change the remainder of the reading frame of a gene sequence that follows the mutation(s)?
If the sequence ATGCATGTCAATTGA were mutated such that a base were inserted after the first G and the third T were deleted, how many amino acids would be changed in the mutant protein?
If a mutated DNA sequence produces a protein that differs in one central amino acid from the normal protein, which of the following kinds of mutations could have occurred?
Generally speaking, which of the following mutations would most severely affect the protein coded for by a gene?
How is translation initiated?
Which of the following processes is an example of a post-translational modification?
Which of the following steps occurs last in the initiation phase of translation?
True or false. A tRNA with an anticodon complementary to the stop codon catalyzes the reaction by which translation is terminated.
What name is given to the process in which a strand of DNA is used as a template for the manufacture of a strand of pre-mRNA?
What name is given to the process in which the information encoded in a strand of mRNA is used to construct a protein