Genetic Sequences, Transcription, and Translation

__________ are parts of __________ molecules that do not contain information about a protein"s primary structure.

The primary transcript is much longer than the mRNA that will eventually be translated. This can be explained by which of the following?

In most cases, introns are spliced out of mature messenger RNA (mRNA) and are not a part of the final translated protein product of a gene. Even though they are not included in the final protein, why are introns important?

In eukaryotes, which of the following is true about introns and exons?

In a eukaryotic cell, a molecule of pre-mRNA is found to have four exons and three introns. Which of the following are possible combinations of the exons, if the order in which they are written is the order in which they will be translated? I. Exon 1, Exon 2, Exon 3, Exon 4 II. Exon 1, Exon 3, Exon 4 III. Exon 4, Exon 1, Exon 2, Exon 3

Which of the following post-translation modifications cannot be classified as lipidation?

If a gene produces a pre-RNA that is 1200 basepairs long and has the following intron-exon structure: Exon 1 - 200 bp Intron 1 - 100 bp Exon 2 - 50 bp Intron 2 - 150 bp Exon 3 - 700 bp How many basepairs long would we expect the mRNA to be?

Which of the following accurately describes the promoter?

Which conditions would result in the largest levels of lac operon transcription?

The lac operon is typically found in prokaryotes in order to utilize lactose in the event that glucose is absent. How does the presence of lactose affect the lac operon?