Domanda del libro di testo
The addition of a ----CH3 to a cytosine nucleotide after DNA replication is called: .
a. Methylation
b. Restriction
c. Transcription
d. Transversion
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Ch. 7 - Microbial Genetics
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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TOC.tableOfContents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
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Capitolo 7, Problema 7
Besides the fact that it synthesizes RNA, how does RNA polymerase differ in function from DNA polymerase?
Guida verificata passo dopo passo1
Step 1: Understand the primary function of RNA polymerase, which is to synthesize RNA molecules by reading a DNA template during the process called transcription.
Step 2: Recognize that DNA polymerase synthesizes DNA molecules by adding nucleotides to a pre-existing DNA strand during DNA replication.
Step 3: Note that RNA polymerase can initiate RNA synthesis de novo, meaning it does not require a primer to start adding nucleotides, whereas DNA polymerase requires a primer to begin DNA synthesis.
Step 4: Consider the substrate differences: RNA polymerase uses ribonucleoside triphosphates (rNTPs) as substrates, while DNA polymerase uses deoxyribonucleoside triphosphates (dNTPs).
Step 5: Summarize that RNA polymerase is involved in transcription producing RNA from DNA, can start synthesis without a primer, and uses rNTPs, whereas DNA polymerase is involved in DNA replication, requires a primer, and uses dNTPs.
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Function of RNA Polymerase
RNA polymerase is an enzyme that synthesizes RNA by reading a DNA template strand during transcription. It initiates RNA synthesis without needing a primer and adds ribonucleotides complementary to the DNA template, producing a single-stranded RNA molecule.
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04:01
DNA Polymerases
Function of DNA Polymerase
DNA polymerase synthesizes DNA by adding deoxyribonucleotides to a pre-existing primer strand during DNA replication. It requires a primer to start and ensures high fidelity by proofreading newly synthesized DNA strands to minimize errors.
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04:01DNA Polymerases
Primer Requirement and Proofreading Differences
Unlike DNA polymerase, RNA polymerase does not require a primer to begin synthesis, allowing it to start RNA chains de novo. Additionally, RNA polymerase generally lacks proofreading ability, resulting in a higher error rate compared to DNA polymerase, which has proofreading functions to maintain DNA integrity.
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05:32Reviewing the Different Types of Microscopes
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