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1) Using the structure of the cell membrane, explain why the cell membrane acts as a selective barrier for the cell.
2) How does diffusion relate to entropy?
3) What types of molecules are able to diffuse across the cell membrane without a protein carrier?
How are nuclear DNA and mitochondrial DNA transferred.
Knowing the length that DNA traveled on an agarose gel after electrophoresis, how do I determine the length of the unknown DNA fragment which traveled (19mm) on the gel.
What is the distribution not the typical 1:1:1:1 that is observed in a dihybrid test cross.
Predict how a mutation that knocks out the glnB gene of E. coli would affect the expression and activity of glutamine synthetase and what affect this gene knockout would have on the cell.
Joshua Ledergerg said, "Our only real competition for domination of planet remains the viruses." In what respect might you make a similar argument about insects.
In eukaryotes, a gene may contain internal sequences that are removed in the RNA, and therefore do not contribute to the protein sequence. What are theses sequences called and how and when are they deleted?
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 did the rmp change with the low na ecf solution. Discuss at least three practical, scientific, and ethical issues that may be raised by such a change in naming.
It has been established that incremental changes led to the development of a human eye. Closely examine the stages of development as seen in slide thirty-one of the Changes lecture.
With regard to the 5' - 3' orientation of the nontranscribed DNA strand, is the order of the genes AB or BA?
Suppose someone presented data from their research that showed the DNA of a newly discovered species was composed of: 30% adenine, 30% guanine.
The phosphorylation of ADP to form ATP stores approximately 7.3 kcal per mole o ATP. What is the approximate efficiency of cellular respiration for a "mutant" organism that produces only 29 mole of ATP for every mole of glucose oxidized, rather than ..
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