Centrifugation Study guides, Class notes & Summaries

Hershey and Chase performed an experiment in order to determine how bacteriophages infect bacteria. What did they find? CORRECT ANSWER The bacteriophage injects DNA into the host cell. This was found because, after centrifugation, the pellet was radioactive The largest difference between a Gram + and Gram - bacterial cell is: CORRECT ANSWER The gram + cell has a much thicker peptidoglycan layer Why does a Gram + cell stain blue/purple in a gram stain? CORRECT ANSWER The Gram + cell stains ...

Hartman Phlebotomy Practice Exam 150 Questions with complete Answers 2023 76. Which of these tasks is typically considered within a phlebotomy technician's scope of practice? (Choose three.) (A) Creating peripheral blood smear slides (B) Drawing blood from an indwelling port (C) Performing a throat culture (D) Drawing blood from the dorsal aspect of the hand using a syringe and transfer device (E) Using a microscope to examine blood smears (A) Creating peripheral blood smear slides ...

MIP 300 Final examwho provides the lipids in a viral envelope - correct answer the cell all viruses have a protein coat - correct answer true a virulent phage can inadvertently package host cell chromosome into phage particles - correct answer true you have a bacterium that picks up a new gene by Hfr conjugation. what is an explanation of why progeny of this bacterium express this trait? - correct answer the gene is integrated into the genome after successful transformation of a frag...

What are the two categories of manual nucleic acid extraction liquid phase extractions Solid-support extractions What chemicals are included in liquid phase manual nucleic acid extraction phenol/chloroform What are solid-support manual nucleic acid extractions based on reversible associations between nucleic acids and silica matrix column packing, or magnetic beads functionalized with surface chemistries specific for the nucleic acid species of interest What is an advantage of the magneti...

Hematology Comp Exam Questions & Answers 2024/2025 Insufficient centrifugation will result in: A. A false increase in Hematocrit (Hct) value B. A false decrease in Hct value C. No effect on Hct value D. All of these options, depending on the patient - ANSWERSA. A false increase in Hematocrit (Hct) value Variation in red cell size observed on the peripheral smear is described as: A. Anisocytosis B. Hypochromia C. Poikilocytosis D. Pleocytosis - ANSWERSA. Anisocytosis Which of ...

QBM All of the Practice Exams Questions And Answers With Complete Solutions 2024 d. protein as a cartoon model, DNA as a ball-and stick model. The image below shows a. protein as a ball-and-stick model, DNA as a molecular surface representation. b. DNA as a ball-and-stick model, protein as a molecular surface representation. c. both as ball-and-stick models. d. protein as a cartoon model, DNA as a ball-and stick model. e. both as cartoon models. b. DNA is responsible for bacterial trans...

PCOL355 Final Test Questions with Correct Answers Which of the following cells secrete anti-coronavirus antibodies? -Activated B cells -Antigen-presenting cells -T-helper cells -Cytotoxin T cells - Answer-Activated B cells PTX-loaded PEG-EB2 had a faster PTX release over Taxol. True/False - Answer-False Pfizer-BioNTech developed Comirnaty, and Moderna developed SPikevas, two widely used COVID-19 nanovaccines using micelles nanoparticles. True/False - Answer-False Centrifugation ...

Iteroparous Species that reproduce multiple times during their lives (ex: humans, dogs, Semelparous Species that reproduce only once in their life, but may produce MANY offspring during that one, Iteroparity A survivorship pattern related to reproductive patterns; often typical of organisms whose survival chances increase once they reach maturity, Semelparity A survivorship pattern related to reproductive patterns; often typical of organisms with type 3 survivorship, Phylogeny a synonym for ...

CMLA Exam Review 2023/2024, Answered With Correct Verified Answers, 100% The most commonly performed test for anticoagulation therapy is: the prothrombin time If a urine specimen cannot be tested within ________ it should be refrigerated. 1 hour Insufficient centrifugation while performing a microhematocrit will result in: a false increase in hematocrit value A decrease in the number of white blood cells is known as: leukopenia Which urine parameter would be abnormal when a patient ha...

Medical Academy CMLA Exam Review 100% Verified Answers The most commonly performed test for anticoagulation therapy is: the prothrombin time If a urine specimen cannot be tested within ________ it should be refrigerated. 1 hour Insufficient centrifugation while performing a microhematocrit will result in: a false increase in hematocrit value A decrease in the number of white blood cells is known as: leukopenia Which urine parameter would be abnormal when a patient has been fasting? k...