P xylene - Study guides, Class notes & Summaries

3 factors to consider for selecting appropriate sampling method 1. Objectives of air sampling 2. Physical and Chemical characteristics of contaminants 3. Required Quality of results Compliance testing should use established/recognized methodologies Source of methods 1. NIOSH 2. OSHA 3. EPA 4. United Kingdom 5. James P. Lodge Analysis Sampling train components 1. Air-inlet orifice 2. Size selection device (optional) 3. Sample collector 4. Tubing...

Which of the following is the counterstain for the gram stain method? - crystal violet - safranin - acetone-alcohol - iodine - gentian-violet - ANSWER safranin Most fixatives act by: - precipitating calcium ions in cells - precipitating cell wall - precipitating carbohydrates in cells - precipitating enzymes in the cells - none of the above - ANSWER precipitating cell wall A Westergren tube is used for which test procedure? - prothrombin time - hematocrit - platelet coun...

Acetic acid - ANSWER-This fixative does not fix or destroy carbohydrates, and it does not fix lipids. It penetrates very rapidly and leaves tissue very soft. It is added to many fixative mixtures because of its ability to fix nuclei. Glutaraldehyde - ANSWER-Techniques using Schiff reagent, such as the periodic acid-Schiff (PAS) stain, cannot be used on __________ fixed tissues because false positive results will be obtained. Glyoxal - ANSWER-This fixative is the smallest dialdehyde and is ...

MB (ASCP) Exam Questions and Answers Graded A+ Predominant form of DNA Right-handed B DNA and histone interaction is due to what type of bond? Ionic What stains to the minor groove of DNA duplex? SYBR Green What is the most abundant type of RNA? Ribosomal RNA (rRNA) What does RNA act as in a retrovirus? Genome and mRNA What increases half-life of mRNA? 5' Methyl Cap What kind of DNA is most likely to be transcriptionally active? Euchromatin What is the most common type of eukaryot...

MB (ASCP) Exam Questions and Answers Graded A+ Predominant form of DNA Right-handed B DNA and histone interaction is due to what type of bond? Ionic What stains to the minor groove of DNA duplex? SYBR Green What is the most abundant type of RNA? Ribosomal RNA (rRNA) What does RNA act as in a retrovirus? Genome and mRNA What increases half-life of mRNA? 5' Methyl Cap What kind of DNA is most likely to be transcriptionally active? Euchromatin What is the most common type of eukaryo...

DAT Test Bank Questions with Answers 100% correct | 2024 update DAT Test Bank Questions with Answers 100% correct | 2024 update Contains marking scheme Survey of Natural Sciences Which of the following viral genomes can be directly translated into protein by the host cell’s translation machinery? Double-stranded DNA Single-stranded DNA, coding (+) strand Double-stranded RNA Single-stranded RNA, coding (+) strand Single-stranded RNA, template (–) strand ...

MB (ASCP) Exam Questions and Answers Graded A+ Predominant form of DNA Right-handed B DNA and histone interaction is due to what type of bond? Ionic What stains to the minor groove of DNA duplex? SYBR Green What is the most abundant type of RNA? Ribosomal RNA (rRNA) What does RNA act as in a retrovirus? Genome and mRNA What increases half-life of mRNA? 5' Methyl Cap What kind of DNA is most likely to be transcriptionally active? Euchromatin What is the most common type of eukaryo...

MB (ASCP) Exam Questions and Answers Graded A+ Predominant form of DNA Right-handed B DNA and histone interaction is due to what type of bond? Ionic What stains to the minor groove of DNA duplex? SYBR Green What is the most abundant type of RNA? Ribosomal RNA (rRNA) What does RNA act as in a retrovirus? Genome and mRNA What increases half-life of mRNA? 5' Methyl Cap What kind of DNA is most likely to be transcriptionally active? Euchromatin What is the most common type of eukaryo...

MB (ASCP) Exam Questions and Answers Graded A+ Predominant form of DNA Right-handed B DNA and histone interaction is due to what type of bond? Ionic What stains to the minor groove of DNA duplex? SYBR Green What is the most abundant type of RNA? Ribosomal RNA (rRNA) What does RNA act as in a retrovirus? Genome and mRNA What increases half-life of mRNA? 5' Methyl Cap What kind of DNA is most likely to be transcriptionally active? Euchromatin What is the most common type of eukaryo...

DAT Test Bank Questions with Answers 100% correct | 2024 update DAT Test Bank Questions with Answers 100% correct | 2024 update Contains marking scheme Survey of Natural Sciences Which of the following viral genomes can be directly translated into protein by the host cell’s translation machinery? Double-stranded DNA Single-stranded DNA, coding (+) strand Double-stranded RNA Single-stranded RNA, coding (+) strand Single-stranded RNA, template (–) strand ...