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Glycophorin is a 128 amino acid integral membrane protein found onmammalian red blood cells.
It crosses the membrane one time and the amino terminal (-NH3) endof the protein is glycosylated and projects from the external faceof the plasma membrane.The C-terminal end of the protein (-COOH) projects into thecytoplasm.a. Sketch a membrane containing glycophorin, showingthe glycosylalted and nonglycosylated ends of the protein.b. Identify the hydrophilic and hydrophobic regions ofglycophorin in your diagram.c. Why is it likely that this protein cannot slip out of themembrane and dissolve in the cytoplasm of the cell or in theextracellular fluids?d. Glycophorin is synthesized in association with theendoplasmic reticulum and, as it is synthesized the amino terminalend of the protein projects into the lumen of the ER.
A man makes 0 units of an enzyme due to homozygous recessive genes on chromosome 21. His wife makes 100 units of the enzyme due to a heterozygous pair of genes on chromosome 21. They have a son with trisomy 21 who makes 200 units of the enzyme.
A 55 year old male who is beginning to take a strain drug for his hypercholesterolemia is discussing cholesterol and its role in health and illness with his physician. Which of the following aspects of hyperlipidemia would the physcian most lik..
The result of mitosis is that daughter cells end up with similar number of chromosomes just as the parent cell.Explain how the results of mitosis differ between two processes of cell division?
Josie has been taking steroids for a prolonged period of time as treatment for rheumatoid arthritis. She has gained weight, especially in her face, and notices that her skin is thin and bleeds easily.
If cell surface receptors can rapidly signal to the nucleus by activating latent gene regulatory proteins.
q. with these anatomical features in mind do research to discover an angiosperm species that has structural
2-mutant, colorless strains of the (fictitious) haploid fungus Cyanomyces are crossed. The progeny consists of 50% wild-type and 50 percent mutant spores.
Explain why are ripe fruits often colorful, fragrant and sweet? Determine the difference between pollination and fertilization in flowering plants?
A population of grasshoppers in the Kansas prairie has two color phenotypes, green and brown. Typically, the prairie receives adequate water to maintain healthy, green grass. Assume a bird that eats grasshoppers moves into the prairie.
Describe how each functions, and outline how the organs work together to carry out the role of an organ system. What quantity of the purple flowered, short stem plants in the F2 are expected to be pure breeding. Illustrate the work.
Which food item would cook the fastest and why with reason. What are the similarities between G-protein receptor systems and Tyrosine-kinase receptor systems.
T.J. and Tyler were building a tree-house. While searching for a board in a pile of used lumber, T.J. stepped on a rusty nail that penetrated deep into his foot, causing it to bleed.
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