Jmu bio - Study guides, Class notes & Summaries

Why is it important to post-rinse when pipetting volumes less than 20 microliters? A. Small volumes may not get expelled completely due to surface tension. B. You can't accurately pipette less than 20 microliters. C. You don't need to post rinse small volumes. D. Small volumes will evaporate prior to transfer. - A. Pipettors are most accurate in the middle to top end of their volume range. True False - True How can contamination be prevented in the laboratory? A. Keeping test tubes an...

JMU Bio 140 Lab Exam Questions and Answers 2023 | 100% Verified Answers JMU Bio 140 Lab Exam Questions and Answers 2023 | 100% Verified Answers

What are the parts of the process of science? - -exploration and discovery -testing ideas -community analysis and feedback -benefits and outcomes What occurs during exploration and discovery? - -making observations -asking questions -sharing data and ideas -finding inspiration -exploring the literature What occurs in testing ideas? - -gathering data (hypothesis, expected results, and actual results) -Interpreting data (support/oppose hypothesis, inspire new hypothesis, inspi...

The variable that is manipulated in an experiment is typically called the: a) independent variable b) dependent variable c) control d) causal variable - a This is defined as a proposed explanation for an observation a) experiment b) conclusion c) prediction d) hypothesis - d Type of study that tests a hypothesis but does not manipulate any variables a) quantitative b) non-experimental c) experimental d) descriptive - b

What are the steps in the scientific method? - -exploration and discovery -testing ideas -community analysis and feedback -benefits and outcomes Define Theory - A well-substantiated explanation of some aspect of the natural world, based on a body of gives that have been repeatedly confirmed The earth's crust consist mainly of what elements? - oxygen and silicon The human body consist mainly of what elements? - oxygen, carbon, and hydrogen Are viruses made of cells? - no What is the cen...

main parts of the flow chart - ANSWER exploration testing ideas community analysis and feedback benefits and outcomes community analysis and feedback examples - ANSWER replication, publication, discussing with colleagues, theory building testing ideas examples - ANSWER gather and interpret data benefits and outcomes examples - ANSWER develop technology, inform policy, and build knowledge exploration and discovery examples - ANSWER explore the literature, ask questions, make observ...

JMU BIO 140 Lab Exam (2023/2024) Questions and Answers (Verified Answers)

JMU BIO 140 LAB FINAL EXAM REVIEW QUESTIONS AND ANSWERS, VERIFIED. 45.3 µL (microliters) = ________ mL (milliliters) a) 0.0453 mL b) 4,530 mL c) 0.00453 mL d) 45,300 mL - -a A laboratory might use ddNTPs (dideoxyribonucleotides) to _____. a) sequence a DNA fragment b) Separate DNA fragments c) visualize DNA expression d) clone the breakpoints of cut DNA - -a A scientist wishes to determine the effect of a digestive enzyme on starch digestion (starch is broken down into gluc...

What are the parts of the process of science? - -exploration and discovery -testing ideas -community analysis and feedback -benefits and outcomes What occurs during exploration and discovery? - -making observations -asking questions -sharing data and ideas -finding inspiration -exploring the literature What occurs in testing ideas? - -gathering data (hypothesis, expected results, and actual results) -Interpreting data (support/oppose hypothesis, inspire new hypothesis, inspire revi...

JMU BIO 290 - UNIT 1 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+JMU BIO 290 - UNIT 1 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+