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Question: Is a viable count really reflective of the number of bacteria in the environment you sampled? For example, if you grow bacteria in different dilution factors on a agar plate, from which you sampled from a kitchen sink, would it reflect the amount of bacteria in the sink? One thing i considered is that the agar has nutrients for the bacteria to grow that the sink doesnt but i would like to hear all your opinions!
Assume you performed a gram stain on a sample from a pure culture of bacteria and observed a field of red and purple cocci. Adjacent cell were not always the similar colour. What do you conclude.
How do respiration and/or photosynthesis affect homeostasis in a living organism.
If two parents are heterozygous carriers of Cystic Fibrosis, demonstrate a pedigree with four children showing the incidence of carriers and afflicted children.
based on diploid cell that has 28 chromosomes in G1 of interphase, Discuss how many pairs of homologous chromosomes are in the cell during g1?
Both chemical and physiological buffering systems exist in the body. What are the two organ systems involved in physiological buffering.
Assume you are conducting a mark-recapture study of a population of snouters. During your first sampling period you go out and catch or mark or release 141 snouters.
Which phenomenon accounts for movement of these genes. Because a doughnut contains large quantity of energy that can become available for our metabolism when eaten, why isn't the doughnut "jumping" all over counter or hot to the touch.
What is the possibility that - if they have a daughter - the daughter will be red-green colorblind. How several are born of each genotype.
A plasmid digest with BamHI produced 2 kb and 4 kb fragments. Digest of a plasmid with HindIII produced 6 kb fragment. Double digest with both enzymes produced 1 kb, 2 kb and 3 kb fragments. Sketch a plasmid map.
A 0.02 M weak acid solution was measured to have a pH of 4.6 determine the [H+] in the solution and compute the acid dissociation constant,
A corn plant is homozygous for a mutant allele that results in no pigment in the seed. The mutant is caused through Ds insertion that often exits late in the seed development,
For each of amino acids, explain how it will contribute chemically to the three-dimensional structure of a protein. Create a Michaellis-Menten curve.
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