Exam 13: Gene Structure and Expression

Suppose that two bases are inserted into the coding region of a gene just after the start codon of a gene. What type of mutation has occurred?

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

Which type of transcription are the proteins called transcription factors involved in?

Suppose that the first part of a new polypeptide chain being produced in a eukaryotic cell does NOT have a signal peptide. Where would this polypeptide be located within the cell as it is maturing?

For each item or event, indicate the process it is associated with. -signal recognition particle

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

Which of the following processes best explains the diversity of human á-tropomyosin proteins?

Relative to the mRNA, what move(s) during translocation?

Match each type of RNA with its description. -snRNA

How is the formation of the peptide bond catalyzed during translation?

Which region of the DNA does RNA polymerase interact with during transcription initiation?

Individuals with the genetic condition sickle cell anemia have hemoglobin coded with the gene that codes for valine instead of glutamic acid. What kind of mutation does this condition result from?

The studies of alkaptonuria provided the first evidence of a connection between genes and metabolism. Who conducted these studies?

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

What is a ribosome made of?

How many letters are in the RNA "alphabet" of the genetic code?

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

What is implied by the concept that the genetic code is universal? a.It is a recent evolutionary development. b.It is different in every type of organism. c.It frequently changes. d.It was established early in evolution.

What is the function of the 3' poly-A sequence in eukaryotic mRNA?

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