In bacteria, the regulation of gene expression most commonly occurs at

You plan to produce human Insulin-like Growth Factor (IGF) in cow milk by generating transgenic livestock.  IGF is primarily produced in the liver and is needed for diabetic patients.   As a first step, you need to clone the gene coding this protein.  For this purpose, which of the following materials would you use to obtain/amplify the coding sequence of this gene?  Also, which technique would you use?

Which of the following statements correctly describes how enhancers are involved in gene regulation in eukaryotes?

A repressor is a (                       ) that (                         ) transcription.

What is the correct order for drawing up mixed insulin?

A pediatric patient with Type 1 diabetes mellitus presents to the emergency department in an unconscious state. Which of the following is the strongest evidence that this patient is experiencing diabetic ketoacidosis (DKA)? 

Which medication works by inhibiting fat absorption in the gastrointestinal tract?  

The following orders are provided for a patient who is a candidate for organ donation. The patient’s urine output is measured at 60 mL/hr. What is the appropriate IV fluid rate based on the protocol?

Level 3 – Typical MCAT Calculation (Low-Risk Question) Calculate the molarity of lead ions that would dissolve if PbCl2 were added to a 250mL KCl (aq., 0.1M) solution. Given: Ksp=1.6E-5 at 25oC for PbCl2 Select the closest correct answer.Simplification hint: Consider the magnitude of the Ksp value and the Ci (just like you would with acids/bases).Note: This question is worth significantly less to allow students to focus more on the fundamentals above.

An inborn error of metabolism that increases the risk for E Coli sepsis is: