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On large, black lava flows in the deserts of the southwestern U.S., populations of many types of animals are composed primarily of black individuals. By contrast, on small lava flows, populations often have a relatively high proportion of light-colored individuals. Explain this difference.
Regarding control of gene expression in eukaryotes, what effect does the binding of transcription factors to upstream promoter elements.
What is the use of having restriction enzyme sites at the 5' beginning of the luciferase gene and a set of restriction enzyme cut sites at the 3' end of the luciferase gene.
Two pure strains of corn with white kernels were crossed. All the F1 progeny had red kernels; the F2 progeny consisted of 91 red and 69 white. Explain the inheritance of pattern for kernel colour by defining allele symbols and giving genotypes and..
Discuss how does the burning of a candle relate to biological processes and biology in general? Any help would be appreciated thank you.
A major evolutionary trend among plants is: A reduction in size of the gametophyte and an increase in size of the sporophyte. A reduction in size of the sporophyte and an increase in size of gametophyte.
Are fats good for you? Why and/or why not? Consider individual types of fats in your discussion.
What is the difference between a root and a rhizoid? What are the "two hallmarks" (p. 574) of alternation of generations? What two stages alternate, and when do mitosis and meiosis happen?
How does the process of mitosis guarantee that both daughter cells will receive an identical complement of genetic information (i.e., an identical set of chromosomes).
Mice are diploid with 2n=40. Determine how many chromosomes make up the genome and how many chromosomes would you expect to see in a mouse gamete.
The decomposition of N2O5 in CCl4 proceeds as follows: 2N2O5 --> 4NO2 + O2. The rate law is first order in N2O5. At 64 degrees Celsius, the rate constant is 4.82 x 10^-3 S^-1.
Your liver cells have been infected with the Hepatitis C virus. Describe the pathways of antigen processing and presentation that would take place. Make sure to explain the detailed process of antigen processing, what kind of MHC molecule will be ..
What are the two major hypotheses for the evolutionary history of introns in prokaryotes and eukaryotes? What is the evidence supporting each of these possibilities? What kind of additional evidence, if available, could help resolve this debate.
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