1) The most superficial layer of skin, made of keratinocytes, is dead and provides a protective barrier. If the keratinocytes were a live at the surface, how could that compromise the protective function of the integument? 2) Electrolysis is the process of hair removal by using electric current. Explain how […]

In recombination in bacteriophage genetics experiment, instead of the mixed T4 rII phage strains being placed in a test tube containing KCN (potassium cyanide), the mixture is diluted 100 fold in 9.9mL of nutrient broth. What is the purpose of this dilution? Note: I am referring to step 2 in the […]

You are researching microbial life on Chikurachki. You scoop up some soil from a crater near the top of the volcano because you are curious about the possible microscopic organisms that might live there. Using your microscope, you examine several samples from the same area on microscope slides.  Your examination […]

Discussion: “Evolution of Animals and Population of Humans” Note: Online students, please respond to one of the following three bulleted items. • Read the New York Times article entitled “From Single Cells, a Vast Kingdom Arose” found here then provide a summary of the article. Next discuss what you believe […]