In the eukaryotic cell, after the transcription product leaves the nucleus it must join with a ribosome to continue the gene expression process. Various proteins and other molecules can bind to, or be attached to, the transcription product and can either help with this joining or hinder it. This is an example of what type of gene regulation?

What polypeptide would result from the translation of an mRNA strand with the sequence listed below? Use the provided codon chart to determine the amino acid sequence – you may list the amino acids either by their three letter abbreviation or by their full name. You should also identify the N terminus and C terminus of the sequence. For students who need it, the long description for the codon chart is linked beneath the image.    5′ – AUG-AGA-UCC-CAU-UGA – 3′ Accessible Codon Chart Long Description.pdf   

Gel electrophoresis commonly separates DNA fragments based on what property?

Where in the eukaryotic cell does transcription occur?

Which of the following is true of the leading strand?

A specific cellular activity, triggered by a signal, is which stage of cell signaling?

Outline the process of RNA splicing. Then identify how this can be used to produce different proteins from the same DNA sequence through alternative splicing.

The binding of a ligand to a receptor protein is which stage of cell signaling?

The following image show a gel at the end of gel electrophoresis. Well 1 was filled with a control, the exact DNA sequence we are looking for. Wells 3 and 5 were filled with DNA extracted from two different samples. Which of these samples does not contain the DNA sequence we are looking for? Choose all that apply.         [Image ID: Gel with 6 wells, 3 used. Well 1 contains control. Well 3 contains Sample 1. Well 5 contains Sample 2. Bars are seen on the gel in 3 areas: top, middle, bottom. Well 1 shows only top bar, Well 3 shows top and middle, Well 5 shows top and bottom.]

DNA that is a combination from two different sources is known as what?