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The sexually transmittable disease gonorrhea has become increasingly resistant to treatment with antibiotics. What is the most likely scientific explanation?
A) The gonorrhea bacteria changed their genes when they sensed antibiotics
B) Antibiotic sensitive gonorrhea bacteria died out, but antibiotic-resistant gonorrhea bacteria have flourished and persisted
C) The antibiotic increased the mutation rate in the gonorrhea bacteria
Lagniapposis is caused by a microparasite, Boudreauxia thibodauxi, and is transmitted directly by coughing and sneezing. It is highly transmissible and very virulent.
Explain the results. Show the genotypes of the parents, and construct a linkage map showing the correct order and distance of the loci.
Presently completed a small chart on comparison of potential deficits among nations given United States style of water consumption.
The -10 and -35 sequences in bacterial promoters are separated by about two turns of the DNA double helix (remember genetics?). How do you think transcription would be affected if the deletion were introduced such that the -35 sequence was moved to -..
It was discovered that the replication of the ends of chromosomes was a problem due to the structure of DNA and the properties of enzymes used in the replication process.
Is it harder to prove a hypothesis than to disprove it? Suppose you wanted to establish that cheetahs are fastest land animals, and suppose you've the ability to clock any animal moving at its top speed.
Name the two organelles (one in animal cells and one in plant cells) that have their own DNA that are NOT located in the nucleus.
A 35-year old mentally retarded man died. His brain showed atrophy of the gyri and histologic features indistinguishable from those of Alzheimer disease. He had a chromosomal abnormality (trisomy 21). What was the most likely diagnosis?
Complete the following table titled 'Applications of Different Observational Study Designs' indicating for every objective under the pertinent study design if objective is 'suitable' or 'not suitable'.
Based on your response in the prior discussion, decide if this research should be allowed. If so, discuss whether or not you believe it should be published. Justify your answer.
At 4.00 rm L, an expandable vessel contains 0.864 rm mol of oxygen gas. How numerous liters of oxygen gas should be added at constant temperature and pressure if you require a total of 1.96 mol of oxygen gas in the vessel.
Early formulation of the medium used a smaller amount of carbohydrate and occasionally produced false alkaline result after forty-eight hours.
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