Refer to the figure below depicting the three steps occurring in one cycle of translation to answer the following question: Name the catalytic activity occurring between step 1 and step 2.

Which of the following statements about the spliceosome is CORRECT?

A competitive inhibitor of an enzyme inhibits a chemical reaction by binding to ____.

MATCHING.  Choose the enzyme or group of enzymes of DNA replication which BEST matches the numbered descriptions above them.  ANSWERS MAY BE USED MORE THAN ONCE, OR NOT AT ALL. Breaks hydrogen bonds between base pairs during DNA replication. 

Which of the following statements about introns is INCORRECT?

The diagram below shows the 5′ end of a eukaryotic mRNA molecule. Based on the sequence given, which of the three possible reading frames would you expect to be used for translation?  (Note: the vertical lines shown in the answer choices are meant to indicate the three distinct reading frames; they do not necessarily indicate codons.)   5′-GGCCACCAUGGCUGAA…

Which of the following is a TRUE statement about a single eukaryotic chromosome?

For the genes of the tryptophan operon to be expressed in bacteria, which of the following must occur to the Trp repressor?

TRUE/FALSE.  Indicate whether each of the following statements is true (A) or false (B).  A partly false statement is still false!                      When an intron is excised from a pre-mRNA, the exons are joined to form a lariat.

Which of the following is TRUE about replication origins?