7. Which enzyme was isolated from her(Henrietta Lack) cells to determine how embryonic cells divide rapidly?
7. Which enzyme was isolated from her(Henrietta Lack) cells to determine how embryonic cells divide rapidly?
The Immortal Life of Henrietta Lacks Research the history of Henrietta Lacks to answer the following ten (10) questions: 1. What type of cancer did Henrietta Lacks die from? 2. Which type of infectious agent caused her cancer, what strain? 3. Does the infectious agent that caused her cancer cause a productive infection, latent infection, or both? 4. Which type of cytokine can recognize cells infected with the pathogen that caused her cancer? 5. Which type of particle recognition receptor...
How did the infectious agent cause her cells (henrietta Lack) to lose control of the cell cycle?
which cells feature is common to normal human differentiated cells and to early embryonic human cells? how are gametes different from zygotes ?
24. Which of the following mechanisms produces the most cells for tissue growth from stem cells? a. The division of the stem cells themselves. b. The division of fully differentiated cells. C. The division of transit amplifying cells. d. The division of stromal/mesenchymal cells. 25. Which of the following would most likely promote cancer if it had a hyperactive mutation? a. E-Cadherin b. Cyclin D c. p27 d. Weet kinase 26. Snakes and lizards each have vertebrae and ribs. Which...
In your membrane fraction that you gently isolated from the cell you have an enzyme activity that you are interested in studying. a. You need to determine if the protein is an integral or peripheral membrane protein. How would you determine this? a. What type of amino acids do you expect if the protein is an integral membrane protein? (list 2 specific amino acids and explain why) TT TT Paragraph Arial 3 (121)
A patient comes into clinic suffering from lack of energy and very low hemoglobin levels. You run some tests and determine his red blood cells have a high level of phosphoenolpyruvate with little pyruvate produced and decreased ATP levels. You quickly deduce that he has a mutation in which glycolytic enzyme(s)?
Question #4 (5 pts): Select a restriction enzyme, determine its cleavage sites, which organism is was derived from and how this enzyme doesn't cleave in the organism it is derived (minus points if you choose enzymes found in the text)? Question #4 (5 pts): Select a restriction enzyme, determine its cleavage sites, which organism is was derived from and how this enzyme doesn't cleave in the organism it is derived (minus points if you choose enzymes found in the text)?
98) Which cells in a sponge are primarily responsible for trapping and removing food particles from circulating water? A) choanocytes B) mesoglea cells C) pore cells (porocytes) D) epidermal cells 99) The number of legs an insect has, the number of vertebrae in a vertebral column, or the number of joints in a digit (such as a finger) are all strongly influenced by A) haploid genomes. B) introns within genes. C) heterotic genes. D) heterogeneous genes. E) Hox genes. 100)...
A biochemist studies the properties of a metabolic enzyme she has just isolated. She obtains kinetic data in the presence and in the absence of two different inhibitors (A and B). The identity of the inhibitors is unknown but we know that one of these is an substrate analog while the other is an alkylating agent. From the plot above determine: a) Km and Vmax of the enzyme b) which inhibitor is the substrate analog? Which is the alkylating agent?...
a) The enzyme glucose 6-phosphatase is essential for the creation of glucose (which passes from the liver to the blood stream) from pyruvate/glycogen? Choose the right option: pyruvate or glycogen b) Red blood cells lack mitochondria and thus they reduce Pyruvate to Lactate under aerobic/anaerobic conditions. Choose the right option: aerobic or anaerobic c) All enzymes involved in glycolysis are cytosolic. Correct or incorrect? d) The Mg+2 ion is a cofactor of most enzymes that participate in the process of...