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1. Describe the regulation of the trp operon (a) in the presence of tryptophan and (b) the absence of tryptophan. Name all components involved and tell where they bind.
2. What is the function of the lac operon?
3. Describe how the lac operon is regulated by both lactose levels and glucose levels. Name all components involved and tell where they bind.
These experiments demonstrated that DNA is the genetic material of phage and that protein does not transmit genetic information. Can this same experiment be carried out with 35S and 14C? Describe it.
Discuss the Latin and common name for five plant species native to Virginia. Latin and common name for two species whose flowers attract butterflies.
Examine how the pancreatic endocrine hormones glucagon and insulin work antagonistically to maintain homeostasis in the body, throughout times of feast and times of famine.
Give an example of an area of research and science which requires a code of ethics when suggesting your modifications to the scientific method.
Which of the following do NOT perform function in the nucleus? Transcription factor proteins, ribosome, RNA polymerase or DNA polymerase?
A hypothetical enzyme in which the active site is complementary to the substrate will.
How the term "consensus sequence" (-RRX(S/T)Y-) relates to the activity of PKA where X is a small amino acid residue (e.g., G), and Y is a large hydrophobic residue (e.g., I), making it clear that you know how the term relates to the function and ..
Elucidate results of all four crosses, using clearly defined gene symbols. describe origin of both of the original prototrophic colonies.
For each of the mutations below, which mutation is more likely to disrupt the structure of a protein that is, make a mutant protein that is less stable than the nonmutant protein?
Describe the steps in the synthesis of the core portion of N-linked oliogosaccharides in the rough ER.
compare and contrast the three types of species (rank) abundance curves. An explanation of what each one represents in terms of niche relationships among the species in a community is needed. Thanks
Four sisters begin attending your school. One has brown hair and brown eyes. Another has brown hair and blue eyes. The third also has blue eyes, but blond hair.
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