Domanda del libro di testo
Proteins are polymers of __________.
a. Amino acids
b. Fatty acids
c. Nucleic acids
d. Monosaccharides
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Ch. 2 - The Chemistry of Microbiology
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 2, Problema 18
In DNA, adenine forms ___________ hydrogen bonds with ____________.
a. Three / uracil
b. Two / uracil
c. Two / thymine
d. Three / thymine
Guida verificata passo dopo passo1
Recall the base pairing rules in DNA, where adenine (A) pairs specifically with thymine (T), and guanine (G) pairs with cytosine (C).
Understand that adenine and thymine form hydrogen bonds to stabilize the DNA double helix structure.
Remember the number of hydrogen bonds between base pairs: adenine and thymine form two hydrogen bonds, while guanine and cytosine form three.
Note that uracil is found in RNA, not DNA, so it does not pair with adenine in DNA.
Combine these facts to conclude that adenine forms two hydrogen bonds with thymine in DNA.
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Base Pairing Rules in DNA
In DNA, nitrogenous bases pair specifically: adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). This complementary base pairing is essential for DNA structure and replication.
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04:33
Chargaff's Rules
Hydrogen Bonding Between Bases
Hydrogen bonds stabilize the DNA double helix by connecting complementary bases. Adenine and thymine form two hydrogen bonds, while cytosine and guanine form three, influencing DNA stability.
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05:03Hydrogen Bonding
Difference Between DNA and RNA Bases
DNA contains thymine as a base, whereas RNA contains uracil instead of thymine. This distinction is important when identifying correct base pairing in DNA versus RNA molecules.
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02:30Introduction to DNA-Based Technology