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BMS110 Chapter 21 Study Guide - BMS110 Section A/D/Z Fall...

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BMS110 Section A/D/Z Fall 2011 BMS110 Chapter 21 Study Guide 1. What are the structural characteristics of DNA? a. 2. What are the specific nucleotide base pairs? a. A – T b. G – C 3. What is a gene and its structure? 4. What are purines and pyrimidines? a. Purines i. Adenine (A) ii. Guanine (G) b. Pyrimidines i. Thymine (T) ii. Cystosine (C) 5. How many hydrogen bonds occur for each type of base pairing? a. C – G (3) b. A – T (2) 6. What is used to visualize DNA? a. 7. What is the central dogma of molecular biology and explain the processes involved in each step? a. DNA – RNA – Protein b. Replication – Transcription – Translation c. DNA polymerase – RNA polymerase – Ribosome d. A,T,C,G – A,U,C,G – 20 AMINO ACIDS e. Phosphate bonds – Phosphate bonds – Polypeptide bonds 8. How does DNA replicate? 9. What is the direction in which replication proceed? a. 3’ to 5’ 10. When new DNA is synthesized at what position is the bonding of the new nucleotide take place?
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