Biology Lab 1: Introduction to Science INSTRUCTIONS: • On your own and without assistance, complete this Lab 1 Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus). • To conduct your laboratory exercises, use the Laboratory Manual located under […]

Microbiology 1. For what specific purpose was gram staining developed for? what is it used for today? 2. Why is the presence of air bubbles a sign of contamination? 3. Why is a gram stain helpful when monitoring bacterial contamination in food or investigating a foodborne illness outbreak? 4. Do […]

Q1. Rub the index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). After a minute or two, rub the same finger over the paper and again rate its coarseness. Did your […]

Combinatorial regulation of gene expression suggests that DNA sequences bound by particular transcription factors might be mixed and matched in different combinations to provide different specificities for regulating downstream genes. Using three different sequence elements, how many combinations of 1, 2 or 3 elements can be envisaged? (Assume that their […]