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You are asked to determine the number of viable organisms per ml in a sample. The sample is thought to contain between 6.3X10^6 and 8.4X10^6 organisms per ml. How would you do this with the least amount of error? Diagram the procedure and dilution scheme that you would follow. Indicate which plate is likely to be the best plate to count.
Assume you are researching flower genetics. You find a plant with a blue flower and another with a white flower.When you mate them, they have many offspring, half the offspring have blue flowers and half have white flowers. Is it possible to do on..
Whether it was volcanic activity that spewed sulfur dioxide and ash into the atmosphere, or a giant meteor that crashed into the Earth blasting dust and debris into the sky.
A certain Drosophila protein-coding gene has one intron. If a large sample of null alleles of the gene are examined, will any of the mutant sites be expected in the
suppose you do a kirby bauer test on a hypothetical staphylococcus species with the antibiotics penicillin and chloramphenicol. you record zone identical diameters of 25mm for the chloramphenicol and penicillin disks.
For a specific type of cell after 3 hours, the concentration of cells per ml of solution is about 400/mL. After 10 hours the concentration has gone up to 2000/mL.
Earlier in 2010, the Pacific island nation of Samoa decided to switch from driving on the right to driving on the left. Why may these cause difficulties? Why is it complicated for a cell to change codon usage, say, switching a "stop" codon to a trypt..
ATP synthesis in chloroplasts is very similar to that in mitochondria: Electron transport is coupled to the formation of a proton (H+) gradient across a membrane.
What series of nucleotide pairs in a Drosophila gene will encode the amino acid sequence met-trp-phe-trp-met (reading from the amino terminus to the carboxyl terminus).
For the purpose of thinking about the genetics of the cross you've made, call the two microsatellite markers A and B. You can then designate the alleles A1, A2, A3, and A4 for the A allele and B1 through B6 for the B marker.
ATP is a source of free energy that drives unfavorable reactions. a) Which of the following processes are coupled to the dephosphorylation of ATP?
Compute the number of ATPs generated from one saturated 12-carbon fatty acid. For this question, suppose that each NADH molecule generates 2.5 ATPs
Describe why heritablility only applies to population (not individuals or species), and how heritability can change without any genetic change occurring.
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