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Gene Interactions
When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.
Gene Expression
Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.
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- Staphylococcus aureus has five types of toxins that help out with its virulence. They are enterotoxin, exofoliative toxin, toxic shock syndrome toxin, leukocidin and hemolysins. Please choose 3. Explain the damage they specifically can cause and how this is beneficial to the bacteria.ANSWER THE FOLLOWING QUESTIONS AND EXPLAIN BRIEFLY. NOTE: ANSWERS SHOULD BE IN PARAGRAPH FORM. 1. How do staphylococcal infections differ in general presentation from streptococcal infections? 2. State one common feature of Staphyloccocus aureus, Clostridium perfringens and Bacillus cereus in terms of their clinical manifestation.Answer the following questions in complete sentences and paragraphs. Draw the diagram by hand: Diagram the 5 step pathogenesis cycle for coli O157:H7, an extracellular, intestinal pathogen acquired by consuming contaminated food/water. Be sure to include the role of exoenzymes and the Shiga exotoxin in your diagram. Explain the pathogenesis of Listeria monocytogenes. Be sure to include temperature regulation, intracellular growth, and at risk groups in your discussion.
- Matching. Match the disease with the principal portal of entry. 1. anthrax a. skin _ 2. botulism 3. gas gangrene b. gastrointestinal tract c. traumatized tissue d. respiratory tract e. urogenital tract f. placenta g. none of these 4. antibiotic colitis 5. tetanus .6. diphtheria -7. listeriosis 8. tuberculosis .9. leprosyA patient arrives at the hospital and is in severe pain. However, after evaluation it appears as though their pain level is disproportionate to the appearance of the wound. What is a potential diagnosis and causative organism? . O Necrotizing fasciitis which is commonly caused by S. epidermidis O Staphylococcal scalded skin syndrome which is caused by S. aureus O Necrotizing fasciitis which is commonly caused by S. pyogenes O Impetigo which is caused by S. pyogenes Question 17 What is the role of cord factor? O Cord factor inhibits the movement of cilia in the respiratory system O Cord factor blocks the release of bacterial endotoxins O Cord factor stops neutrophil migration O Cord factor releases fibrin and captures monocytes Question 18 Cvanosis is a common sign for which pathogenic organism? 12Is the TREPONEMA PALLIDUM HAEMAGGLUTINATION TEST (TPHA) test specific for Treponema pallidum? Create an illustration showing a passive haemagglutination reaction Discuss how Syphilis causes disease
- ۲:۱۱ ۱ | ZAVO {1 docs.google.com/forms/ Inhalation of few arthroconidia of * Coccidioides immitis, are sufficient to produce primary coccidioidomycosis. True False A patient with positive HBsAg, positive HBeAg, positive HBcAb IgG: he has chronic infection and he is infectious he can transmit its infection sexually but not through blood transfusion he has active acute hepatitis B infection all of the answers O A illalfa K/sa. If a person returns from traveling afflicted with trypanosomiasisor leishmaniasis, is he or she generally infective to others?Explain.b. Explain why there is no malaria above 6,000 feet in altitude.c. Account for all of the protective effects offered by insecticidetreatedbednets.Match the provided infectious diseases its Causative agent (Column A), Clinical manifestation (Column B), and classification based on gram staining and morphology (Column C). 1. Bacillary Dysentery 2. Peptic Ulcer Disease 3. Gonococcal Urethritis 4. Most common cause of Community Acquired Pneumonia in Adults 5. Endemic Typhus 6. Black Plague 7. Second most common cause of UTI in sexually active women 8. Condyloma latum 9. Botulism 10. Meningococcemia
- Explain the pathogenesis of Listeria monocytogenes. Be sure to include temperature regulation, intracellular growth, and at risk groups in your discussion.ANSWER THE FOLLOWING QUESTIONS AND EXPLAIN BRIEFLY. 1. How do staphylococcal infections differ in general presentation from streptococcal infections? 2. State one common feature of Staphyloccocus aureus, Clostridium perfringens and Bacillus cereus in terms of their clinical manifestation.Which of these diseases is spread by needle sticks Question options: A) Hepatitis C B) Rocky Mountain spotted fever C) Syphilis D) All of the above