Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 17, Problem 30RQ
Summary Introduction
To review:
The role of env (envelop) trimer in human immunodeficiency virus (HIV) infection.
Introduction:
HIV is responsible for causing acquired immune deficiency syndrome (AIDS). HIV is prominent in immune-compromisedpatients and causes many diseases simultaneously, including cancer. Thus, the infection caused by HIV is lethal for individuals.
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A _____________________ is a multienzyme complex thatsynthesizes RNA primers during E. coli DNA replication.
A _____________ is a multienzyme complex that synthesizes RNA primers in E. coli DNA replication.
. ___________________________ factors are proteins thatregulate or initiate RNA synthesis by binding directly orindirectly to specific DNA sequences called responseelements.
Chapter 17 Solutions
Biochemistry: The Molecular Basis of Life
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- Question 1. Enzymes, proteins and deoxyribonucleic acid (DNA) macromolecules. Enzymes are not only speed up the reaction, but also are necessary for DNA repreduction. are important biological a) Compare the process of protein synthesis between eukaryote mRNA and viral RNA b) With the aid of a diagram, draw an adapter molecule that recognizes the codons of mRNA and explain its functions in DNA translation.arrow_forwardIn _____________ heterogeneity, mutations in one of two or moredifferent genes can cause the same disease.arrow_forwardA base change that has no discernible effect is called a____________________ mutation.arrow_forward
- Question 43 The addition of restriction endonucleases in the cloning process is done following the ligation with DNA ligase. A) True B) Falsearrow_forwardQuestion 49 The Sanger method of DNA sequencing follows the principle of complementarity just like in the replication process. A) True B) Falsearrow_forwardQUESTION 19 Place the following steps in the expression of the lac operon in the order in which each occurs for the first time after a cell is induced. v A phosphodiester bond is formed between two ribonucleotides. - A peptide bond is formed between the first two amino acids in beta-galactosidase (lac Z). Sigma protein binds to a specific DNA sequence. RNA polymerase ends transcription of the lacA gene. v A protein leaves an operator DNA sequence. v A ribosomal RNA binds to a complementary sequence in mRNA.arrow_forward
- Question 9B Why are host cell antiviral responses that target double-stranded RNA effective against single- stranded RNA viruses like influenza or coronaviruses? Would a system that responds to the presence of double-stranded RNA be effective against retroviruses? Explain.arrow_forwardThe purpose of mitosis in human cells is for the production of two diploid, _________________ cells.arrow_forwardThe eukaryotic mRNA is protected from degradation by a 3′ _____________.arrow_forward
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