Under what conditions does one expect a 9:3:3:1 ratio?
What will be an ideal response?
dihybrid cross (F
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You find a small animal with eight legs crawling up your bedroom wall. Closer examination will probably reveal that this animal also has _____
A) simple, but not compound, eyes B) two pairs of antennae C) a head, thorax, and abdomen D) tracheae and spiracles
After the first exposure to an antigen, a ________ stimulates growth and multiplication of antigen-reaction cells
A) secondary innate immune response B) primary adaptive immune response C) phagocytic immune response D) hyperactive cytotoxic response
Microscopically, this fungus appears barrel shaped with thick walls, which best describes which type of conidia?
a. Macroconidia b. Chlamydoconidia c. Arthroconidia d. Blastoconidia
You have a very sore throat with symptoms indicating strep throat. Since you are taking microbiology right now, you decide that you will take a swab from your throat and swab it onto an enrichment medium like a blood agar plate or a brain-heart infusion agar plate. Why is this not a good idea?
A. You are on a diet now, and you are afraid that the food that you are eating will in some way impact the growth of the bacteria. As a result, you will not get valid results. B. You use a mouthwash a couple of times a day, so you think that the antibacterial properties of the mouthwash will inhibit or kill the oral bacteria and results in invalid results. C. Due to the fact that you cannot easily see the sampling site, there is a high probability that you will not be able to obtain your own specimen without contaminating the sample with your own normal biota. D. All of these statements are correct.