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A new kind of tulip is produced that develops only purple and pink flowers. Assume that flower color is controlled by a single-gene locus and that the purple allele (C) is dominant to the pink allele (c). A random sample of 1000 tulips froma larg cultivated field yields 812 purple flowers and 188 pink flowers.
a. Determine the frequency of the purple and pink alleles in this field population.
b. Estime the proportion of all purple flowering plants that are heterzygotes and homozygotes.
How can you explain the fact that a patient who has cardiac ischemia as indicated by angina pectoris, and who survives a cardiac infarction, may be relieved of his pain afterwards?
A mutation occurs in the lac repressor protein such that it can no longer bind to allolactose. What effect will this mutation have on expression of proteins of the lac operon in the presence of lactose?
Atherosclerosis is the progressive disease of blood vessels that is responsible for millions of death each year. Explain disease process, noting the involvement of specific cell/tissue types and molecules.
Nigericin is an ionophore that exchanges K+ for H+ across membranes. describe how the treatment of functioning mitochondria
Determine which biological macromolecule is not really a polymer and Which statement about biological polymers and their precursors below is TRUE?
While a tall homozygous plant was crossed with a short homozygous plant, the F1 offspring were all tall. No short plants were present in the F1 generation. Which principle does this situation represent.
If you started a PCR protocol with 10 double stranded molecular of DNA, Determine how many double stranded molecules of product would you have after 5 cycles of PCR?
Through the internet a person can now look up almost any type of medical information imaginable. As this class focuses on learning medical terminology.
Apoptosis and the Hayflick limit and their relationship to cancer formation
In some cases the first gene in the linear sequence appears to be transcribed at a much higher rate than the second and subsequent genes (as in many but not all mRNAs contain the sequences encoded by gene 2 and beyond).
Assume a male patient is searching for the cause of his infertility. A karyotype shows he has two "X" chromosomes, but otherwise normal chromosomes.
Explain the role of chemicals as messengers in regulating the body homeostasis.
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