Exam 15: Genes and How They Work

The mutation responsible for Huntington's disease is a

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?

How does DNA polymerase differ from RNA polymerase?

What would happen if snRNPs did not recognize the branch point within an intron?

Crick and his colleagues proposed that the genetic code consists of a series of blocks of information, called ______, each corresponding to one amino acid in an encoded protein.

During protein synthesis in eukaryotes, what happens during RNA splicing?

What is the likely consequence of a mutation that alters the branch point within an intron?

In eukaryotic cells, transcription occurs

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

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

You are attempting to synthesize rRNA in a test tube using DNA isolated from mouse cells.In addition to the template DNA, ribonucleotides, and the necessary transcription factors, you should also add _________ to the test tube.

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?

Most eukaryotic genes contain noncoding sequences called ________ that are interspersed with the coding sequences.

What is the first step during transcription initiation in prokaryotes?

The A, P, and E sites are progressively occupied by amino acids being assembled into a polypeptide.These sites are part of

Specific amino acids are attached to tRNA molecules by

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

During translation, the nucleotides that make up the mRNA are read in groups of three.These groups are called

The genetic code uses _________ nucleotide(s) to specify one amino acid.

Within the transcription bubble, the 9 most recently added nucleotides in the newly synthesized RNA strand temporarily form a helix with the template DNA strand.How might transcription be affected if helix formation did not occur?