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Question: To make up a solution of phosphate buffered saline (PBS), you need 5mM Na2HPO4 (anhydrous) (FW: 141.96), 0.15 M NaCl (FW: 58.44), and 1 mM KH2PO4 (FW: 136.09). How many grams of each will you need to make up 650mL of phosphate buffered saline?
The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar through pour plate method. The plates were incubated aerobically for 48 hours at 37C.
A differs from that of the other four species because of simple misalignment, then what should the computer software find when it compares the series of Species A to those of the other four species.
The bacteria are allowed to grow overnight and are streaked on a plate using the technique that produces isolated colonies that are clones of the original. Samples of these colonies are then grown in four different media: nutrient broth plus ampicill..
As a biologist it is your job to look for plants that have evolved structures with a selective advantage in dry hot conditions. Which of the adaptions would be least likely to meet the objective.
Determine which types of cells can we derive continuous cell lines? From which types of cells can we? Derive finite cell lines? From which types of cells do we derive mature differentiated cells?
A patient suffers with symptoms of an upper respiratory infection, especially nasal congestion. Determine which category of autonomic drugs would be the best choice for his treatment?
bioinformatic You have been given a gene sequence, which is in RAW file format. Perform the following tasks by visually inspecting the sequence using information you were provided during lectures for Module 1, Topics 2 and 3.
A white albino mouse was crossed with a wild grey colored one. The first generation mice were all grey. In the second generation, there were 198 grey and 72 albino mice.
Select appropriate symbols for the alleles of the height and flower colour genes. List phenotypes and predicted ratios for the F2 generation.
In mice, dwarfism is caused by an X-linked recessive allele, and pink coat is caused by an autosomal dominant allele. If a dwarf female from a pure line is crossed with a pink male from a pure line, Determine the phenotypic ratios in the F1 and F2 in..
Suppose i f an individual with genotype pQ/Pq heterozygous for both loci in trans arrangement of alleles is crossed with an individual of genotype PQ/pq.
Predict equilibrium potentials E K and E Na at a temperature of 13 o C. Suppose that the Na permeability of the cell membrane is 1/50 that of the K permeability, predict the resting potential, E m , assuming that Cl is in equilibrium.
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