Exam 13: Gene Structure and Expression

Which codon/amino acid pairing represents the universal start codon in eukaryotes?

How many proteins are specified in the genetic code?

Match each type of RNA with its description. -rRNA

Where in the sequence of a eukaryotic gene would one find the TATA box? a.in the coding region b.at the transcription start point c.in the terminator d.in the promoter

-In the figure of transcription, what is the name of item C?

Suppose that a DNA change results in the substitution of one codon for another, and the new codon specifies a different amino acid from the original. What type of mutation has occurred?

How is the reading frame established during translation?

How are protein-encoding genes in eukaryotes transcribed?

At the start of translation, where is the initiator tRNA base paired with the start codon?

For each item or event, indicate the process it is associated with. -spliceosome

For each item or event, indicate the process it is associated with. -release factor

Which process involves small ribonucleoprotein particles (snRNPs)?

Which of the following types of RNA is typically found as a strand that is about 75 to 90 bases long and folds into a structure with four double-helical segments?

Describe the process of mRNA splicing.

Which molecule provides the energy that the cell requires for protein translation?

Which of the following describes a polysome?

For each item or event, indicate the process it is associated with. -capping enzyme

Suppose that a DNA change results in the substitution of one codon for another, and the new codon specifies a stop codon where it did NOT previously. What type of mutation has occurred?

Match each term with its definition. -promoter

-In the figure of transcription, what is the name of item A?