Domanda del libro di testo
Single strands of nucleic acids are directional, meaning that there are two different ends. What functional groups define the two different ends of a strand?
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Ch.4 - Nucleic Acids and the RNA World
Freeman8th EditionBiological ScienceISBN: 9780138276263
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TOC.tableOfContents
- Ch. 1 - Biology: The Study of Life13
- Ch. 2 - Water and Carbon: The Chemical Basis of Life14
- Ch.3 - Protein Structure and Function10
- Ch.4 - Nucleic Acids and the RNA World10
- Ch. 5 - An Introduction to Carbohydrates10
- Ch. 6 - Lipids, Membranes, and the First Cells11
- Ch. 7 - Inside the Cell10
- Ch. 8 - Energy and Enzymes: An Introduction to Metabolism10
- Ch. 9 - Cellular Respiration and Fermentation11
- Ch. 10 - Photosynthesis12
- Ch. 11 - Cell-Cell Interactions12
- Ch. 12 - The Cell Cycle8
- Ch. 13 - Meiosis12
- Ch. 14 - Mendel and the Gene23
- Ch. 15 - DNA and the Gene: Synthesis and Repair15
- Ch. 16 - How Genes Work16
- Ch. 17 - Transcription, RNA Processing, and Translation16
- Ch. 18 - Control of Gene Expression in Bacteria16
- Ch. 19 - Control of Gene Expression in Eukaryotes12
- Ch. 20 - The Molecular Revolution: Biotechnology, Genomics, and New Frontiers15
- Ch. 21 - Genes, Development, and Evolution12
- Ch. 22 - Evolution by Natural Selection16
- Ch. 23 - Evolutionary Processes13
- Ch. 24 - Speciation15
- Ch. 25 - Phylogenies and the History of Life13
- Ch. 26 - Bacteria and Archaea15
- Ch. 27 - Diversification of Eukaryotes16
- Ch. 28 - Green Algae and Land Plants16
- Ch. 29 - Fungi18
- Ch. 30 - An Introduction to Animals9
- Ch. 31 - Protostome Animals15
- Ch. 32 - Deuterostome Animals17
- Ch. 33 - Viruses16
- Ch. 34 - Plant Form and Function16
- Ch. 35 - Water and Sugar Transport in Plants16
- Ch. 36 - Plant Nutrition13
- Ch. 37 - Plant Sensory Systems, Signals, and Responses16
- Ch. 38 - Flowering Plant Reproduction and Development16
- Ch. 39 - Animal Form and Function17
- Ch. 40 - Water and Electrolyte Balance in Animals16
- Ch. 41 - Animal Nutrition16
- Ch. 42 - Gas Exchange and Circulation16
- Ch. 43 - Animal Nervous Systems16
- Ch. 44 - Animal Sensory Systems16
- Ch. 45 - Animal Movement11
- Ch. 46 - Chemical Signals in Animals16
- Ch. 47 - Animal Reproduction and Development16
- Ch. 48 - The Immune System in Animals16
- Ch. 49 - An Introduction to Ecology15
- Ch. 50 - Behavioral Ecology16
- Ch. 51 - Population Ecology16
- Ch. 52 - Community Ecology20
- Ch. 53 - Ecosystems and Global Ecology17
- Ch. 54 - Biodiversity and Conservation Ecology18
Freeman8th EditionBiological ScienceISBN: 9780138276263Non è quello che usi tu?Cambia libro di testo
Capitolo 4, Problema 7
What would be the sequence of the strand of DNA that is made from the following template: 5′-GATATCGAT-3′? (Your answer must be written 5'→3'.) How would the sequence be different if RNA were made from this DNA template?
Guida verificata passo dopo passo1
Step 1: Understand the basics of DNA replication. DNA replication is a process where a double-stranded DNA molecule is copied to produce two identical DNA molecules. DNA is made up of four types of nitrogen bases: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). In DNA, Adenine pairs with Thymine and Guanine pairs with Cytosine.
Step 2: Apply the base pairing rules to the given DNA template. The given DNA template is 5′-GATATCGAT-3′. According to the base pairing rules, the sequence of the new DNA strand would be 5′-CTATAGCTA-3′. This is because G pairs with C, A pairs with T, T pairs with A, C pairs with G, and so on.
Step 3: Understand the basics of transcription. Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). In RNA, Thymine is replaced by Uracil (U). So, Adenine pairs with Uracil in RNA.
Step 4: Apply the base pairing rules to the given DNA template for RNA. The given DNA template is 5′-GATATCGAT-3′. According to the base pairing rules for RNA, the sequence of the new RNA strand would be 5′-CUAUAGCUA-3′. This is because G pairs with C, A pairs with U, T pairs with A, C pairs with G, and so on.
Step 5: Compare the sequences of the new DNA and RNA strands. The sequence of the new DNA strand is 5′-CTATAGCTA-3′ and the sequence of the new RNA strand is 5′-CUAUAGCUA-3′. The sequences are the same except for the replacement of Thymine (T) by Uracil (U) in RNA.
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DNA Replication
DNA replication is the process by which a cell duplicates its DNA before cell division. During this process, the DNA strands separate, and new complementary strands are synthesized based on the original template strands. The base pairing rules dictate that adenine pairs with thymine, and cytosine pairs with guanine, which is essential for accurately copying the genetic information.
Video consigliato:
03:37
Introduction to DNA Replication
Transcription
Transcription is the process by which the genetic information in DNA is copied into RNA. During transcription, RNA polymerase binds to the DNA template strand and synthesizes a complementary RNA strand. Unlike DNA, RNA uses uracil instead of thymine, which means adenine in the DNA pairs with uracil in the RNA, leading to a different sequence when RNA is produced from a DNA template.
Video consigliato:
04:161) Initiation of Transcription
Nucleotide Base Pairing
Nucleotide base pairing is the specific pairing of nitrogenous bases in nucleic acids, which is crucial for the structure and function of DNA and RNA. In DNA, adenine pairs with thymine and cytosine pairs with guanine, while in RNA, adenine pairs with uracil instead of thymine. Understanding these pairing rules is essential for determining the complementary sequences during DNA replication and RNA transcription.
Video consigliato:
05:35Nucleotides
Pratica correlata
Domanda del libro di testo
Make a concept map that relates DNA's primary structure to its secondary structure. Your diagram should include deoxyribonucleotides, base-stacking interactions, purines, pyrimidines, phosphodiester linkages, DNA's primary structure, DNA's secondary structure, complementary base pairing, and antiparallel double helix.
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Domanda del libro di testo
According to the RNA world model, a ribozyme would replicate by creating a double-stranded RNA intermediate. Would you expect the intermediate to have the same catalytic activity as the original ribozyme? Justify your answer with an explanation.
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Domanda del libro di testo
If nucleotides from the DNA of a human were quantified and 30 percent of them contained the base adenine, what percentage of them would contain the base guanine?
a. 20 percent
b. 30 percent
c. 40 percent
d. 70 percent
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Domanda del libro di testo
What is responsible for the increased stability of DNA compared to RNA?
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