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A new radioactive element is discovered called Obama45. This element decays into Nohea43 (a rare element called Nohealthcareandatleastfivemoreyearsinafghanistan) with a half life of 10 years. If a fossil is obtained and tested for these radioisotopes we find that ratio of Obama45 to Noheal43 is 1:15. How old is the fossil using radiometric dating.a) 10 yearsb) 20 yearsc) 30 yearsd) 40 yearse) 50 years
The genes A and B are on one chromosome, 30 cM apart. The genes C and D are on another chromosome, 20 cM apart. The genes E and F are on a third chromosome, 10 cM apart.
q1. the oldest rocks on earth date from about 4.2 billion years ago. what does this propose about the interval between
q1. a scientist wants to grow human cells to use in an experiment. what must the scientist do to grow and maintain
Discuss and briefly explain the three processes that would explain how pseudomonas could transfer its genetic resistance to Enterobacter and Klebsiella.
what type of evolutionary or ecologicalexperiment(in theory) can i do with red tailed boas (Boa Constrictor constrictor) orany other type snake for that matter? your ideas are greatly appreciated thank you.
Jean Manning, Charles Kerfoot, and Edward Berger studied the frequencies at the phosphoglucose isomerase (GPI) locus in the cladoceran Bosmina longirostris.
A 20 year old female presents to your emergency service with severe head trauma from a fall. An MRI reveals swelling of her brain, but no sign of hemorrhage.
What is the basic theory of biological evolution and what evidence is there to support this theory? Describe the two scientific models for evolution.
What happens to the average speeds of the particles in a gas when one increases that gas's temperature?
utilizing knowledge from your learning and assigned readings respond to the following questions1 what activity during
You are interested in calculating the concordance for a trait of interest. You look at a total of 500 pairs of twins and find that of the 500 pairs, 125 pairs have ONE twin with the trait of interest and 50 pairs have BOTH twins with the trait of ..
1 in the calvin cycle determine how many molecules of co2 must be fixed to form a molecule of glucose? how many
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