Test Bank Questions: Chapter 1 DNA Is the Hereditary Material Chapter 1 Multiple Choice Format 1. In the experiment showing that DNA is the genetic material of bacteria‚ heat-killed S Pneumococcus cells A. transformed live R Pneumococcus. B. killed mice injected with them. C. were made alive again. D. killed R Pneumococcus. E. transformed type II cells to type III cells. Answer: A 2. The genetic material of a cell or virus A.
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the cell surface membrane - Idea of the receptor causing (chemical) changes inside the cell - A (functional) {second messenger} activates an {enzyme/transcription factor/eq} Any 2 from: - Idea of a hormone entering the cell through the cell membrane - The hormone binds to a receptor - The {hormone-receptor complex/eq} acts as a transcription factor What is the negative feedback principle? (2) - Idea of responding to deviations from normal levels by reversing their effect - Idea of helping
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REPLICATION‚ TRANSCRIPTION‚ and TRANSLATION 1. What is the difference between REPLICATION‚ TRANSCRIPTION‚ and TRANSLATION? Where does each process take place in the cell? 2. Define semi-conservative replication. 3. How is DNA read and made? From what end to what end? 4. What is the job of these enzymes: DNA polymerase? Helicase? Primase? Ligase? 5. What are the 3 kinds of RNA? What roles do each play in making proteins? 6. What molecule is read and what molecule is made in transcription? 7. What
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Ross Cambe 3. Molecular microbial ecology and stable isotopes. 14C and C13 Dating- gives us an idea for life‚ when life began and what environment looked like Radioactive- determines how OLD the material is in the environment Stable- Biological ORIGIN of material in environment Based on the concept that during life‚ every living thing accumulates certain amount of 14C Helps us date organisms or discoveries Biogenic origin vs. abiotic origin: 13C. fixed proportion of C12 to 13C Preferential
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the survival of organisms at all levels. This is much more complex in eukaryotes than in prokaryotes. A major difference is the presence in eukaryotes of a nuclear membrane‚ which prevents the simultaneous transcription and translation that occurs in prokaryotes. Initiation of protein transcription is started by RNA polymerase. The activity of RNA polymerase is regulated by interaction with regulatory proteins; these proteins can act both positively‚ as activators‚ and negatively as repressors. An example
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(one code specifies for two amino acids) ! E. Polyribosome - Clusters of ribosomes on same mRNA. III. Protein Synthesis ! A. DNA directs protein synthesis through RNA ! B. mRNA carries blueprint for a particular protein out of the nucleus. ! ! 1. Transcription - Copying of the genetic
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a. opposite‚ unidirectional b. opposite‚ bidirectional c. three‚ bidirectional d. unique‚ unidirectional e. common‚ bidirectional Some DNAs are circular and some are linear. How does this fact affect DNA synthesis? Transcription Which eukaryotic RNA polymerase synthesizes mRNAs and most small nuclear RNAs? a. RNA polymerase I b. RNA polymerase II c. RNA polymerase III d. RNA polymerase IV e. RNA polymerase
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CHAPTER 8 1) DNA is found in structures called ______. -chromosomes 2) A(n) ______ is an example of an organism that can reproduce asexually. -amoeba 3)+++ Examine the figure below. Nucleosomes are made of ______. - DNA wrapped around histone proteins 4)++ As shown in the following figure‚ plant cell cytokinesis differs from animal cell cytokinesis because - Plant cells form a cell plate and animal cells do not 5)The chromosomes of eukaryotic cells are found in the _____ -Nucleus 6) Chromatin consists
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Pam: How Do You Become a Court Reporter? Anyone who wants to become a court reporter will follow a similar academic and career paths. This means that they must graduate from an approved program‚ accumulate relevant work experience and depending on the state‚ obtain licensure and certification. Earn a Degree Many online and traditional technical schools and community colleges offer two-year degrees in areas like court reporting and stenography‚ which teach students how to use a computer and stenotype
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or other symbols instead of Chinese characters. Chinese New Year Traditional Chinese 農曆新年 Simplified Chinese 农历新年 Literal meaning Agricultural / Agrarian Calendar’s New Year [show]Transcriptions Spring Festival Traditional Chinese 春節 Simplified Chinese 春节 Literal meaning Spring Festival [show]Transcriptions Chinese New Year is an important traditional Chinese holidays. In China‚ it is also known as the Spring Festival‚ the literal translation of the modern Chinese name. Chinese New Year
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