Exam 15: Genes and How They Work

During transcription of mRNA in eukaryotes,some sequences are cut out of the primary transcript and the remaining sequences are joined together.This processing of mRNA is called ________.

Eukaryotes have ________ type(s)of RNA polymerase.

In eukaryotes,the 3' poly-A tail is attached to

Messenger RNA molecules contain information that is used to synthesize ________.

During ________,a ribosome assembles a polypeptide whose amino acid sequence is specified by the nucleotide sequence in a molecule of mRNA.

The Central Dogma of biology can be stated as

In prokaryotes,the RNA polymerase holoenzyme consists of

Gene ________ refers to the combined processes of transcription and translation.

In eukaryotes,pre-mRNA processing may involve all of the following except

How would a large chromosomal inversion affect the expression of a gene if the gene is located between the two break points but no breaks occur within the gene?

During protein synthesis in eukaryotes,which molecule passes from the nucleus to the cytoplasm and specifies the sequence of amino acids in the new polypeptide?

What is the first step during transcription initiation in prokaryotes?

During translation,translocation refers to

The connection that exists between genes and hereditary traits is based on using the information encoded in genes to synthesize

A bacterial cell has a nonsense mutation that prevents it from producing a functional sigma subunit for RNA polymerase.Inability to synthesize a functional sigma subunit would have the most direct effect on

In eukaryotes,each type of RNA polymerase recognizes a different

Both DNA and RNA are made up of building blocks known as

Ribosome movement along the mRNA is called

A codon is composed of how many bases?

Cells conserve energy and resources by making active proteins only when they are needed.If a protein is not needed,which of the following methods of control would be the most energy-efficient?