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 8
In translation, the site through which tRNA molecules leave a ribosome is called the:
a. A site
b. X site
c. P site
d. E site
Guida verificata passo dopo passo1
Recall the three main sites on a ribosome involved in translation: the A site (aminoacyl site), the P site (peptidyl site), and the E site (exit site).
Understand the function of each site: the A site is where the incoming tRNA carrying an amino acid binds, the P site holds the tRNA with the growing polypeptide chain, and the E site is where tRNA molecules exit the ribosome after their amino acid has been added.
Identify that the question asks specifically for the site through which tRNA molecules leave the ribosome.
Match this function to the correct site name, which is the E site (exit site).
Confirm that the correct answer corresponds to option d. E site.
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Ribosome Structure and Function
Ribosomes are molecular machines in cells that synthesize proteins by translating mRNA sequences. They have three key sites—A (aminoacyl), P (peptidyl), and E (exit)—which coordinate the entry, peptide bond formation, and exit of tRNA molecules during translation.
Video consigliato:
08:39
Structure of Prokaryotic Ribosomes
tRNA Role in Translation
Transfer RNA (tRNA) molecules bring specific amino acids to the ribosome, matching their anticodon with the mRNA codon. After delivering their amino acid, tRNAs move through the ribosome sites and eventually exit, allowing the process to continue efficiently.
Video consigliato:
06:16Ribosomal tRNA Binding Sites
The E Site in Translation
The E site (exit site) is the location on the ribosome where tRNA molecules, having transferred their amino acid to the growing polypeptide chain, leave the ribosome. This site ensures proper recycling of tRNAs during protein synthesis.
Video consigliato:
06:16Ribosomal tRNA Binding Sites
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