Domanda del libro di testo
Name the bases in the pentanucleotide with the sequence G-A-U-C-A. Does this come from RNA or DNA? Explain.
891
views
Ch.26 Nucleic Acids and Protein Synthesis
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187
Non è quello che usi tu?Cambia libro di testoScegli un libro di testo diverso
TOC.tableOfContents
- Ch.1 Matter and Measurements27
- Ch.2 Atoms and the Periodic Table20
- Ch.3 Ionic Compounds8
- Ch.4 Molecular Compounds23
- Ch.5 Classification & Balancing of Chemical Reactions12
- Ch.6 Chemical Reactions: Mole and Mass Relationships28
- Ch.7 Chemical Reactions: Energy, Rate and Equilibrium64
- Ch.8 Gases, Liquids and Solids24
- Ch.9 Solutions52
- Ch.10 Acids and Bases25
- Ch.11 Nuclear Chemistry22
- Ch.12 Introduction to Organic Chemistry: Alkanes57
- Ch.13 Alkenes, Alkynes, and Aromatic Compounds47
- Ch.14 Some Compounds with Oxygen, Sulfur, or a Halogen50
- Ch.15 Aldehydes and Ketones45
- Ch.16 Amines42
- Ch.17 Carboxylic Acids and Their Derivatives57
- Ch.18 Amino Acids and Proteins82
- Ch.19 Enzymes and Vitamins63
- Ch.20 Carbohydrates44
- Ch.21 The Generation of Biochemical Energy65
- Ch.22 Carbohydrate Metabolism45
- Ch.23 Lipids42
- Ch.24 Lipid Metabolism33
- Ch.25 Protein and Amino Acid Metabolism24
- Ch.26 Nucleic Acids and Protein Synthesis45
McMurry8th EditionFundamentals of General, Organic, and Biological ChemistryISBN: 9780134015187Non è quello che usi tu?Cambia libro di testo
Capitolo 26, Problema 10
Is a DNA molecule neutral, negatively charged, or positively charged? Explain.
Guida verificata passo dopo passo1
DNA molecules are composed of nucleotides, which consist of a sugar (deoxyribose), a phosphate group, and a nitrogenous base.
The phosphate group in each nucleotide contains a negatively charged oxygen atom, which gives the DNA molecule an overall negative charge.
These negatively charged phosphate groups are present along the backbone of the DNA molecule, making the entire structure negatively charged.
The negative charge of DNA is important for its interactions with other molecules, such as positively charged proteins (e.g., histones) that help in DNA packaging.
In summary, a DNA molecule is negatively charged due to the presence of phosphate groups in its structure.
Risposta video verificata per un problema simile:
Questa soluzione video è stata consigliata dai nostri tutor come utile per risolvere questo problema.
Durata del video:
1mConcetti chiave
Ecco i concetti essenziali che devi comprendere per rispondere correttamente alla domanda.
DNA Structure
DNA, or deoxyribonucleic acid, is a molecule composed of two strands that coil around each other to form a double helix. Each strand is made up of nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base. The phosphate groups in the backbone of the DNA contribute to its overall charge.
Video consigliato:
Percorso guidato
3:27
DNA Double Helix Concept 1
Charge of DNA
DNA molecules are negatively charged due to the presence of phosphate groups in their structure. Each phosphate group carries a negative charge, which results in the overall negative charge of the DNA molecule. This charge plays a crucial role in the interactions of DNA with proteins and other molecules in the cell.
Video consigliato:
Percorso guidato
5:08Steps of DNA Replication Concept 1
Biological Implications of Charge
The negative charge of DNA is significant for its biological functions, including its interaction with positively charged proteins, such as histones, which help package DNA into chromatin. This charge also influences the behavior of DNA during processes like electrophoresis, where DNA fragments are separated based on size and charge.
Video consigliato:
Percorso guidato
02:22Periodic Table: Transition Metals Charges Concept 1
Pratica correlata
Domanda del libro di testo
What is the difference between DNA polymerase and DNA ligase?
833
views
Domanda del libro di testo
Draw the structures of adenine and uracil (which replaces thymine in RNA), and show the hydrogen bonding that occurs between them.
853
views
Domanda del libro di testo
What are Okazaki fragments? What role do they serve in DNA metabolism?
590
views
Domanda del libro di testo
Write the complementary sequence of bases for each DNA strand shown next.
a. 5′T-A-T-A-C-T-G 3′
665
views
Domanda del libro di testo
DNA and RNA, like proteins, can be denatured to produce unfolded or uncoiled strands. Heating DNA to what is referred to as its “melting temperature” denatures it (the two strands of the double helix become separated). Why does a longer strand of DNA have a higher melting temperature than a shorter one?
692
views