Rna interference Study guides, Class notes & Summaries

QBM Practice Exam 4 ( Questions And Answers) Verified 100% Correct!! Which of the following expression systems is fastest, but would not glycosylate a protein? Bacteria Transfection can be performed using the capabilities of retroviruses. __________ is a form of post-transcriptional gene regulation in which non-translated double-stranded RNA (dsRNA) molecules called small interfering RNA (siRNA) mediate sequence specific degradation of target messenger RNA (mRNA). RNA interference Cells...

1. Highly condensed chromatin that is transcriptionally inactive is called - Answer-Heterochromatin 1. If you were to make a synthetic form of DNA in which the phosphate group is substituted by a chemical group exhibiting a net positive charge, the resulting synthetic DNA" - Answer-Would likely not be packaged by histones The major structural proteins in human chromatin are known as - Answer-histones The main function of the centromere is to - Answer-Allow the proper distribution of ch...

Question 1 Correct 4.17 points out of 4.17 The movement of substances from higher to lower concentration across a semipermeable membrane via a specific protein carrier but without energy expenditure is called . Select one: a. facilitated diffusion b. active transport c. diffusion d. endocytosis e. osmosis Question 2 Correct 4.17 points out of 4.17 An organism that cannot grow without oxygen is a/an . Select one: a. facultative anaerobe b. obligate anaerobe c. aerobe d. oblig...

Antibacterials and antimicrobials correct answer Substances that inhibit bacterial growth or kill bacteria and other microorganisms including viruses, fungi, protozoa, rickettsiae Antibiotic correct answer Refers to chemicals produced by one kind of microorganism that inhibits the growth of or kills another Bacteriostatic drugs correct answer Inhibit the growth of bacteria Bactericidal drugs correct answer Kill bacteria When is trough level drawn for drugs correct answer Minutes befo...

NBME CBSE REAL EXAM/ NBME CBSE 200 QUESTIONS AND ANSWERS/ NBME CBSE LATEST / Review (Recent Exam) Chagas Disease ---------- Correct Answer -------- Caused by Trypanosoma cruzi parasite passed in the feces of Reduviidae/kissing bug Penetrates broken skin or intact mucous membranes forming a pseudocyst releasing inflammatory infiltrates into myocytes; stains with Giemsa & Wright Romana sign occurs when portal of entry is the conjunctiva or eyelid May resulting in: Enlarged heart- CHF...

Define biotechnology - correct answers The use of technology to improve living organism and processes for the bennifit of man Briefly state the main difference of modern from classical biotechnology - correct answers Modern BTEC involves recombinant DNA technology Selective breeding is an early form of classical biotech, where there is deliberate crossing of parent organisms with favorable traits. Name two vegetables that are products of selective breeding from one common ancestor that w...

Chagas Disease - Caused by Trypanosoma cruzi parasite passed in the feces of Reduviidae/kissing bug Penetrates broken skin or intact mucous membranes forming a pseudocyst releasing inflammatory infiltrates into myocytes; stains with Giemsa & Wright Romana sign occurs when portal of entry is the conjunctiva or eyelid May resulting in: Enlarged heart- CHF, sudden cardiac arrest Enlarged esophagus- difficulty swallowing Enlarged colon- abdominal pain or constipation Treat with benzn...

1. A researcher is studying chromosomal disorders. What part of the human cell would the researcher be interested in studying? a. Cytoplasm b. Membrane c. Nucleus d. Organelles Ans: C Feedback: The nucleus of a cell contains all of the genetic material that is necessary for cell reproduction. The nucleus also contains genes or sequences of deoxyribonucleic acid (DNA). Genes are responsible for the formation of messenger ribonucleic acid (mRNA) and transcription RNA, which are involved ...

The diffraction limited resolving power of a standard light microscope is approximately? correct answers 0.2 micro meter Studies on which model experimental organism led to the initial discovery of important mechanisms controlling the development of the animal body plan? correct answers Drosophila melanogaster Because the genetic code usually has more than one codon for each amino acid, the code is said to be correct answers degenerate Vectors for expressing a eukaryotic protein in a ba...

Chagas Disease - Answer Caused by Trypanosoma cruzi parasite passed in the feces of Reduviidae/kissing bug Penetrates broken skin or intact mucous membranes forming a pseudocyst releasing inflammatory infiltrates into myocytes; stains with Giemsa & Wright Romana sign occurs when portal of entry is the conjunctiva or eyelid May resulting in: Enlarged heart- CHF, sudden cardiac arrest Enlarged esophagus- difficulty swallowing Enlarged colon- abdominal pain or constipation Treat wit...