Homework Answers
Both colchicine and Taxol inhibits mitosis. Colchicine is a alkaloid ( and a poison ) ,produced by plants belongs to the family Liliaceae. It inhibits the microtubules to form spindle fibres . That is , it inhibits the microtubule polymerization . Taxol prevents the straining of microtubules and inactivates it , thereby it prevents the mitosis and eventually kills the cell.
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please help. cell biology.
7. Why should it be that drugs such as colchicine, which inhibit...
help please HULUH Dallerld. 8. Many antibiotics inhibit protein synthesis. They should be narrow or broad...
help please
HULUH Dallerld. 8. Many antibiotics inhibit protein synthesis. They should be narrow or broad spectrum antibiotics and why? Name 3 of them and explain how/where they work (site of action). 9. Usually, how many ways bacteria becomes drug resistance-explain. 10. What is Kirby-Bauer test and what it is used for? Explain the process. 11. Why animal viruses have envelope, explain with example. 12. What is the basic difference between infection by phage and an animal virus, explain? 13....
Question 1 of 8 2.0 Points Which of the following statements about the cytoskeleton is false?...
Question 1 of 8 2.0 Points Which of the following statements about the cytoskeleton is false? A. The cytoskeleton is made up of three types of protein filaments. B. The cytoskeleton controls the location of organelles in eukaryotic cells. C. Covalent bonds between protein monomers hold together cytoskeletal filaments. D. The cytoskeleton of a cell can change in response to the environment. Reset Selection Question 2 of 8 2.0 Points Which of the following statements about the function of the...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is known as a proto-oncogene. True False QUESTION 2 Cytokinesis occurs after which stage or phase of the cell cycle? a. G2 b. S c. G0 d. G1 e. M phase QUESTION 3 During cell-cycle checkpoints, protein kinases known as CDKs phosphorylate target proteins only when they associate with a cyclin. True False QUESTION 4 During mitosis, many of the spindle fibers attach to chromosomes...
Can you please help me with this problem: 3. Sketch a cell where N=4 (3 pts),...
Can you please help me with this problem:
3. Sketch a cell where N=4 (3 pts), and answer the following: a. Can this cell do mitosis? If so, describe the outcome in terms of the number of cells, their ploidy and their chromosome number. If not, explain why. b. Can this cell do meiosis? If so, describe the outcome in terms of the number of cells, their ploidy and their chromosome number. If not, explain why. 4. Assume you have...
answer only question number 7.please answer only question number 7 Why termination of a cell signaling...
answer
only question number 7.please answer only question number 7
Why termination of a cell signaling event is important? Explain with two examples how GPCR signaling is terminated. What is actin filaments treadmilling? What would be the consequence for actin filament assembly/disassembly if a mutation prevented actin's ability to bind ATP? What would be the consequence if a mutation prevented actin's ability to hydrolyze ATP? Predict the effect on a cell's actin cytoskeleton if function blocking antibody against cofilin was...
please help me to answer all these questions please please!!! Home Work Micro Fall 2019. Chapts...
please help me to answer all these questions please please!!!
Home Work Micro Fall 2019. Chapts 6 and 12 Answer 10 questions = 50 points 1. Every virus can infect any organism. True or False-Explain your answer. 2. Penicillinase enzyme produced by drug resistant bacteria makes them resistant to penicillin. How it works. How some modified penicillin (like Amoxicillin or Ampicillin still kills penicillin resistant bacteria? 3. What is the difference between lysogeny and lytic cycle of a virus, explain....
7 through 14 please 7. A superinfection occurs due to: A) a lack of drugs to...
7 through 14 please
7. A superinfection occurs due to: A) a lack of drugs to treat the infection; B) drug toxicity to kidneys: C) using the wrong drugs to treat the patient: D) destruction in normal flora leading to overgrowth of an unaffected species which in turn causes the disease; E) an allergic immune response 8. heat is more rapidly effective and efficient compared to heat. A) High, dry; B) High, moist; C) Dry, moist; D) Moist, dry, E)...
Please, need help with this problem ! ( Cell Biology ) Thank You Problem 9 -...
Please, need help with this problem ! ( Cell Biology )
Thank You
Problem 9 - Panoptes In Ancient Greek mythology, the giant Argus was attributed the nickname "Panoptes" ("all seeing") because he had 100 eyes spread all over his head and body. And our friend Argus Panoptes, herem is afflicted with ubiquitous expression of the eyeless gene Aristotle and molecular biology Nowadays, researchers induce mutations in animal models to better understand mutations in humans In fruit flies, a genetic...
Please help me with these questions, thank you 4. Why are virus generally more difficult to detect than other groups...
Please help me with these questions, thank you
4. Why are virus generally more difficult to detect than other groups of organisms? 5. W hy are anti-cancer drugs and anti-fungal drugs generally more toxic than antibiotics? 6. Against which population of disease producing organisms are antibiotics most effective? 7. BONUS. A gram negative organism is placed in a solution of distilled water and penicillin. What would you predict the outcome to be? Explain.
Please type long answers on a separate sheet and attach to this page to hand in....
Please type long answers on a separate sheet and attach to this page to hand in. 1. The five cells shown in figures a-e are all from the same individual. a) What is "n" in this organism? (0.5pts) b) Under each cell indicate i) which process depicted (mitosis, meiosis I, or meiosis II) and ii) what stage of cell division is represented. (1.25pt) A certain adult plant cell has 16 chromosomes. (1 point) (a) How many chromatids are in a...
help please
HULUH Dallerld. 8. Many antibiotics inhibit protein synthesis. They should be narrow or broad spectrum antibiotics and why? Name 3 of them and explain how/where they work (site of action). 9. Usually, how many ways bacteria becomes drug resistance-explain. 10. What is Kirby-Bauer test and what it is used for? Explain the process. 11. Why animal viruses have envelope, explain with example. 12. What is the basic difference between infection by phage and an animal virus, explain? 13....
Can you please help me with this problem:
3. Sketch a cell where N=4 (3 pts), and answer the following: a. Can this cell do mitosis? If so, describe the outcome in terms of the number of cells, their ploidy and their chromosome number. If not, explain why. b. Can this cell do meiosis? If so, describe the outcome in terms of the number of cells, their ploidy and their chromosome number. If not, explain why. 4. Assume you have...
answer
only question number 7.please answer only question number 7
Why termination of a cell signaling event is important? Explain with two examples how GPCR signaling is terminated. What is actin filaments treadmilling? What would be the consequence for actin filament assembly/disassembly if a mutation prevented actin's ability to bind ATP? What would be the consequence if a mutation prevented actin's ability to hydrolyze ATP? Predict the effect on a cell's actin cytoskeleton if function blocking antibody against cofilin was...
please help me to answer all these questions please please!!!
Home Work Micro Fall 2019. Chapts 6 and 12 Answer 10 questions = 50 points 1. Every virus can infect any organism. True or False-Explain your answer. 2. Penicillinase enzyme produced by drug resistant bacteria makes them resistant to penicillin. How it works. How some modified penicillin (like Amoxicillin or Ampicillin still kills penicillin resistant bacteria? 3. What is the difference between lysogeny and lytic cycle of a virus, explain....
7 through 14 please
7. A superinfection occurs due to: A) a lack of drugs to treat the infection; B) drug toxicity to kidneys: C) using the wrong drugs to treat the patient: D) destruction in normal flora leading to overgrowth of an unaffected species which in turn causes the disease; E) an allergic immune response 8. heat is more rapidly effective and efficient compared to heat. A) High, dry; B) High, moist; C) Dry, moist; D) Moist, dry, E)...
Please, need help with this problem ! ( Cell Biology )
Thank You
Problem 9 - Panoptes In Ancient Greek mythology, the giant Argus was attributed the nickname "Panoptes" ("all seeing") because he had 100 eyes spread all over his head and body. And our friend Argus Panoptes, herem is afflicted with ubiquitous expression of the eyeless gene Aristotle and molecular biology Nowadays, researchers induce mutations in animal models to better understand mutations in humans In fruit flies, a genetic...
Please help me with these questions, thank you
4. Why are virus generally more difficult to detect than other groups of organisms? 5. W hy are anti-cancer drugs and anti-fungal drugs generally more toxic than antibiotics? 6. Against which population of disease producing organisms are antibiotics most effective? 7. BONUS. A gram negative organism is placed in a solution of distilled water and penicillin. What would you predict the outcome to be? Explain.
Please type long answers on a separate sheet and attach to this page to hand in. 1. The five cells shown in figures a-e are all from the same individual. a) What is "n" in this organism? (0.5pts) b) Under each cell indicate i) which process depicted (mitosis, meiosis I, or meiosis II) and ii) what stage of cell division is represented. (1.25pt) A certain adult plant cell has 16 chromosomes. (1 point) (a) How many chromatids are in a...
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