1. (a) RNA polymerase synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) DNA synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression

1. (a) RNA polymerase synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) DNA synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression

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Description: 1. (a) RNA polymerase synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression(b) DNA synthesis in a 5 -3 direction Gene is switched ON Gene is switched OFF Does NOT affect the gene expression

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 14QP

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1. (a) Binding of transcription activator protein Gene is switched ON Gene is switched OFF Does NOT affect the gene expression (b) the RNA polymerase binds at the promoter region Gene is switched ON Gene is switched OFF Does NOT affect the gene expression
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10. Protein expression can be blocked by antisense oligonucleotides. Which mechanism enables antisense oligonucleotides to block protein synthesis? O Antisense oligonucleotides bind to ribosomes and inhibit their function. Antisense oligonucleotides bind to DNA in the nucleus and inhibit the synthesis o MRNA. Antisense oligonucleotides bind to ribosomal RNA (rRNA) and inhibit ribosome assembly. Antisense oligonucleotides bind to messenger RNA (MRNA) and prevents mRNA binding to ribosomes.
4.) what is the amino acid chain that your answer in item 2 will dictate? Question in Item 2: The complementary strand from item 1 undergoes transcription. What will be its mRNA complementary strand? Answer : The mRNA complementary strand from this complementary strand obtained from item 1 should be:AAGUUUCGCCCCGGG. 5.) Suppose that the amino acid chain in item 4 is altered. In what stage replication, transcription, or translation) could an error have occured? Explain your answer using the template DNA from item 1. Question in item 1 : if a DNA template with the sequence AAGTTTCGCCCCGGG undergoes replication, what will be its complementary DNA strand? Answer : According to complementary base pairing rules, A is complementary to T and G is complementary to C. Hence the complementary DNA strand should be:TTCAAAGCGGGGCCC
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#4 A (4 pts): Matching, indicate which letter (A-H below) best matches each number: 1) RNA polymerase 2) sigma (6) subunit of RNA polymerase 3) rho (p) factor 4) transcription factors 5) tRNA 6) TATA box 7) 5' mRNA cap 8) mRNA A. polymerization of RNA B. 7-methyl guanosine C. in eukaryotic transcription these are required to recruit RNA polymerase D. contains information in the form of codons E. binds to promoter, dissociates once transcription is underway F. contains information in the form of anticodons G. associated with transcription termination H. an upstream consensus sequence of the core promoter
a) Define the term gene expression b) State 4 difference between prokaryotes and eukaryotes gene expression c) state the importance of regulating gene expression
Which of the followings statements are true about DNA polymerase? 1.) It can only go in one direction, meaning the lagging strand can't be synthesized continuously. 2.) It cannot start a DNA strand from scratch, so another enzyme is needed to create "primers" as a starting point. 3.) It cannot copy epigenetic marks (such as methyl groups) on its own; these must be "copied" onto the daughter DNA strand by other enzymes after DNA replication. 4.) All of the above