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 […]

Why is a percentage scale used for the x-axis rather than actual ages? A) Researchers don’t know the maximum life span of the organisms. B) This scale allows you to compare species with widely varying life spans on the same graph. C) The range of the actual ages would be […]

Bacteriophages area. large bacteria.b. protistans.c. pathogens (disease-producing bacteria).d. viruses.e. cellular components.?Which is Not a major function of the genetic material?a. undergo mutationsb. replicate itselfc. store informationd. catalyze chemical reactionsRosalind Franklin helped reveal the structure of DNA by usinga. cytosine analysisb. centrifuge analysisc. bacteriaphagesd. X-ray crystallographyDetermine which of the following statements […]

Q. In a natural population of out breeding plants, the variation of the total number of seeds per plant is 16. From natural population, 20 plants are taken into the laboratory and developed into divide true-breeding lines by self-fertilization-with selection for high, low, or medium number of seeds-for 10 generations. […]