Textbook Question
The following is a schematic of the parent DNA that is about to be replicated. Which side of the pictured DNA molecule (A or B) would be the leading side? Explain your answer.
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Ch. 5 - Genetics
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619
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Table of contents
- Ch. 1 - Introduction to Microbiology22
- Ch. 2 - Biochemistry Basics19
- Ch. 3 - Introduction to Prokaryotic Cells17
- Ch. 4 - Introduction to Eukaryotic Cells16
- Ch. 5 - Genetics25
- Ch. 6 - Viruses and Prions12
- Ch. 7 - Fundamentals of Microbial Growth20
- Ch. 8 - Microbial Metabolism16
- Ch. 9 - Principles of Infectious Disease and Epidemiology11
- Ch. 10 - Host Microbe Interactions and Pathogenesis19
- Ch. 11 - Innate Immunity24
- Ch. 12 - Adaptive Immunity22
- Ch. 13 - Immune System Disorders15
- Ch. 14 - Biomedical Applications: Vaccines, Diagnostics, Therapeutics, and Molecular Method14
- Ch. 15 - Antimicrobial Drugs18
- Ch. 16 - Respiratory System Infections16
- Ch. 17 - Skin and Eye Infections19
- Ch. 18 - Nervous System Infections12
- Ch. 19 - Digestive System Infections20
- Ch. 20 - Urinary and Reproductive System Infections10
- Ch. 21 - Cardiovascular and Lymphatic Infections15
Norman-McKay2nd EditionMicrobiology: Basic and Clinical PrinciplesISBN: 9780137661619Not the one you use?Change textbook
Chapter 5, Problem 23
Which of the following is produced by transcription?
a. mRNA
b. Protein
c. DNA
d. None of the above
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Understand the process of transcription in molecular biology: Transcription is the synthesis of RNA from a DNA template.
Recall that during transcription, the enzyme RNA polymerase reads the DNA sequence and produces a complementary RNA strand.
Identify the type of RNA produced during transcription, which is messenger RNA (mRNA), carrying the genetic code from DNA to the ribosome.
Recognize that protein synthesis occurs during translation, which is a separate process from transcription.
Conclude that among the options given, mRNA is the molecule produced by transcription.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Transcription
Transcription is the process by which a segment of DNA is copied into messenger RNA (mRNA) by the enzyme RNA polymerase. It is the first step in gene expression, where the genetic code from DNA is transcribed to produce an RNA molecule.
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04:16
Initiation of Transcription
mRNA (Messenger RNA)
mRNA is the RNA molecule produced during transcription that carries the genetic information from DNA to the ribosome. It serves as a template for protein synthesis during translation.
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08:442) RNA Splicing Creates Mature mRNA
Protein Synthesis (Translation)
Protein synthesis, or translation, is the process where ribosomes read the mRNA sequence to assemble amino acids into a protein. Unlike transcription, proteins are not produced directly from DNA but from the mRNA transcript.
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02:50Proteins
Related Practice
Textbook Question
Protein synthesis occurs in two main stages: ___________ and ___________.
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Textbook Question
In Griffith's classical experiments on transformation, which of the following scenarios led to a dead mouse? Select all that apply.
a. Infecting the mouse with a living strain of S. pneumoniae that makes a capsule
b. Infecting the mouse with a heat-killed strain of S. pneumoniae that makes a capsule
c. Infecting the mouse with a heat-killed strain of S. pneumoniae that makes a capsule and a living strain of S. pneumoniae that cannot make a capsule
d. Infecting the mouse with a living strain of S. pneumoniae that cannot make a capsule
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Textbook Question
Cells that can be transformed are said to be ___________.
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Textbook Question
Use the genetic code table in the chapter and the DNA sequence below to answer the following questions:
3'-TACATAAAATAATGGCGTTCTATT-5'
a. What would the mRNA sequence be, based on the provided DNA sequence?
b. What would the corresponding polypeptide sequence be for this DNA sequence?
c. What tRNA anticodon loop would correspond to the third codon of the mRNA?
d. What would the mRNA and polypeptide sequences be if the second adenine in the DNA was deleted?
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