C. Imagine a person has a new disease that causes the cell membranes of the liver to become less viscous.
i. Why could this be a problem?
ii. If you could use gene therapy to make those liver cells change the constituents of the cell membrane what would you add or take away to make the cells function properly?
1) the problem could be due to lack of unsaturated fatty acids in the phospholipids on the membrane.
2) We have add more unsaturated fatty acids to the phospholipids to make it proper.
C. Imagine a person has a new disease that causes the cell membranes of the liver...
23. A protein called Ras is tethered (linked) to the plasma membranes of stem cells where it participates in signal transduction pathways that affect stem cell proliferation. Which of the following covalent modifications would be responsible for tethering (linking) the Ras to the membrane? A. Phosphorylation B. Glycosylation C. Lipid modification D. Ubiqutiylation E. Acetylation 24. What do transmembrane proteins in the peroxisome, nucleus, and mitochondria all have in common? A. They are all co-translationally inserted into the membrane B....
Lab Analysis Exploring Patterns of inheritance 3. Siekde sal di C-cell disease is a genetic condition used by an autosomal receive allele which af fects one in every 500 African A c hild born in the US. One in every en African Americans is a carrier for the Aluch e cell disease is caused by a single human gene, it is expressed throw many different effects throughout the body The presence of a recessive schedulele in humans causes the red...
3. Sickle-cell disease is a genetic condition caused by an autosomal recessive allele which al- fects one in every 500 African American children born in the U.S. One in every ten African Americans is a carrier for the recessive allels. Although sickle cell disease is caused by a single human gene, it is expressed through many different effects throughout the body. The presence of a recessive sickle-cell allele in humans causes the red blood cells to produce abnormal hemoglobin protein...
21: Met c aion of the Polamino 21. Which of the following would NOT Change the structure and function of a protein A Methylation of a protein B. Lipid modification of a protein C. Change in the length of the Poly A tail of the mRNA transcript encoding a protein D. Change in the position of reactive amino acids E. Proteolysis 22. Two peptides have almost the exact same primary structure, except that one has about 10 fewer amino acids...
Sickle-cell Anemia Study Sickle-cell anemia or Sickle-cell disease, is a hereditary disorder. characterized by aryabnormality in the oxygen-carrying hemoglobin molecule in erythrocytes. Sickle-cell conditions have an autosomal recessive pattern of inheritance from parents. The sickle cell defect is a mutation of a single nucleotide of the hemoglobin B gene, which results in glutamic acid being substituted by a different amino acid at position 6. Hemoglobin with this mutation is referred to as Hbs, as opposed to the normal hemoglobin HbA....
4. Inspired by the natural design of cell membranes, you have invented a strange new semi-permeable membrane consisting of a water-impemeable base layer interspersed with hydrophilic transmembrane glycoproteins which form three types of channels. Channel type 'A' is approx imately 3 angstroms in diameter and lined with negative charges Channel type 'B' is approximately 3 angstroms in diameter also but lined with positive charges Channel type C is approximately 4 angstroms in diameter and electrically neutral This membrane separates two...
Mendelian Genetics The gene involved in the disease Sickle Cell Anemia (SCA) is on human chromosome 11. Allele “A” is the normal form of the gene and codes for a part of the protein complex called hemoglobin. Hemoglobin is required for your blood cells to carry oxygen. Allele “a” is an abnormal form of the gene. The hemoglobin protein made from the “a” allele is defective. Red blood cells containing the defective protein are very fragile. This disease is recessive–meaning...
ALS is caused by the accumulation of misfolded protein that eventually leads to neuronal cell death. Just as is the case with prion diseases (e.g., Mad Cow disease), there is a spreading effect: even the presence of a small amount of misfolded (e.g., mutant) protein can cause other WT proteins of the same kind to become misfolded, which join the large misfolded aggregate forming in diseased cells. This is the principle mechanism thought to be behind the spreading of neurodegeneration...
here would you expect to find a bedrophhobic amino acld like valine? hor of the folded protein, away from water on the exterior surface of the protein, interacting with water C) in the interior of the folded protein, away from water, or in a tranomembrane portion interacting with lipid fatty acid chains D) in the transmembrane portion interacting with lipid fatty acid chains- 20) Which of the following are found in plant, animal, and bacterial cells? A) chloroplasts C) ribosomes...
BACKGROUND:
Mycobacterium tuberculosis causes tuberculosis, one of the world’s
deadliest diseases. It is an acid-fast bacillus that is 2-4 um in
length and 0.2-0.5 um in width.
How many weeks, days,& hours would it take to see a
M.tuberculosis colony on solid media? Its generation time is listed
in the reading (above). Assume that bacterial colonies are not
visible to the naked eye unless they contain ≥ 2 millioncells. This
species forms aggregates of 5 cells on average. Show your...