Biology eoc exam - Study guides, Class notes & Summaries

The results shown in the picture were obtained using a technique known as gel electrophoresis. This technique separates mixtures of DNA. In the picture nine different samples of DNA are compared. Gel electrophoresis can be used to — correct answer: identify how closely two individuals are related The graphs show the reaction rate for an enzyme across a range of temperatures and pH. Based on these data, this enzyme functions best at what temperature and pH? correct answer: Temperature o...

What is the pH scale based on? correct answer: the measure of H+ ions in a solution (lower is more H+ and higher is more OH-) What is a pH of 1-6? correct answer: acidic What is a pH of 7? correct answer: neutral what is a pH of 8-14? correct answer: basic What is a buffer? correct answer: a compound used to neutralize acids & bases to stabilize pH When is a substance considered acid rain? correct answer: when it is below 5.6 What are all organisms made of? correct answer...

Which of the following outlines the four types of decisions assessment helps educators make? screening, progress, diagnostic, or outcome What do the ipsative standards compare? a student's performance on the assessment compared to that of his prior performance. According to research, how long should a teacher wait after asking a question? until at least one person knows the answer What does checking for understanding allow a teacher to assess? whether or not the teacher...

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