Some genes are transcribed using one strand of DNA as the template, while other genes are...
Some genes are transcribed using one strand of DNA as
the template, while other genes are transcribed using the other
strand. Explain how this is possible and why this is advantageous
to the cell, and for storing
genetic information.
Homework Answers
It depends on where the transcriptional promoters are located. If there are transcriptional promoters on both strands of your template, then you will get RNA from both strands. Usually, when transcribing from plasmids and linear PCR products, there will only be one transcriptional promoter at a defined site. When working with genomic DNA, there are probably going to be multiple transcription promoters. It helps in better regulation.
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Some genes are transcribed using one strand of DNA as
the template, while other genes are...
In a long double-stranded DNA molecule containing the genetic information for many genes, the template strand...
In a long double-stranded DNA molecule containing the genetic information for many genes, the template strand for one gene may be the nontemplate strand for another gene. true or false
In a particular region of the genome of a certain bacterium, one DNA strand is transcribed...
In a particular region of the genome of a certain bacterium, one DNA strand is transcribed to give rise to an mRNA for protein A and the other DNA strand is transcribed to give rise to an mRNA for protein B. a) Would there be any problem in expressing the two genes? b) If a mutation occurred to affect the structure of protein A, what would you observe in the structure of protein B?
DNA sequence of a one strand of a gene to be transcribed is: 3’ — AGTCCGATGGGCT...
DNA sequence of a one strand of a gene to be transcribed is: 3’ — AGTCCGATGGGCT GA — 5’ the sequence of the MRNA is: 3’ — AGUCCGAUGGGCTGA — 5’ the sequence of the DNA strand shown above is that of the: a. template strand b. coding strand
1. Using the following terms, describe the process of transcription a. Template strand, non-template/coding strand, DNA,...
1. Using the following terms, describe the process of transcription a. Template strand, non-template/coding strand, DNA, RNA, RNA polymerase, 3 5, 5 3', uracil, promoter, termination sequence, enhancer, nucleus, cytoplasm. What process often follows transcription? How is the genetic code used in this process ?
In DNA replication, the ________ strand grows towards the replication fork, while the ________ strand grows...
In DNA replication, the ________ strand grows towards the replication fork, while the ________ strand grows away from the replication fork. mRNA; leading leading; lagging leading; template lagging; template lagging; leading Which of the following is not necessarily related to tumour formation? an overactive MYC gene proto-oncogenes inactive tumour-suppressor genes cell de-differentiation metastasis The total number of unique, three-base combinations of the four nucleic acid bases in DNA is 12. 16. 20. 64. 256. The purpose of cloning is to...
One strand of a section of DNA isolated from E. coli reads: 5’GTAGCCTACCCATAGG-3’
One strand of a section of DNA isolated from E. coli reads: 5’GTAGCCTACCCATAGG-3’ (a) Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be? (b) What is the amino acid sequence of the proteins. (c) Would the same proteins be made if the other strand of DNA served as template for transcription? Why or why not. (d) If the T underlined in the above sequence was to...
DNA is double stranded, but only one strand is used as a template for transcription. How...
DNA is double stranded, but only one strand is used as a template for transcription. How does the cellular machinery determine which strand to use as the template? Choose the best answer. O It always starts on the 5' end. O The sequence of the DNA that will be transcribed determines which strand will be used. O It always starts on the 5' end closest to the centromere. O The location and orientation of the promoter determine which strand will...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be? What is the amino acid sequence of the proteins? Would the same proteins be made if the other strand of DNA served as template for transcription? Why or why not? If the T underlined in the above sequence was to go...
4. Given the following information: One strand of a section of DNA isolated from E. coli...
4. Given the following information: One strand of a section of DNA isolated from E. coli reads 5’-GTAGCCTACCCATAGG-3’ 3’ CATCGGATGGGTACC’5 Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be (please include orientation)? How many different polypeptides chains could potentially be made from this sequence of RNA? Would the same polypeptide chains be made if the other strand of the DNA...
2. Explain why the replication of one of the DNA strands is continuous while the other...
2. Explain why the replication of one of the DNA strands is continuous while the other strand is discontinuous. What causes this difference? 3. A) What are telomeres? B) Are telomeres present in both Prokaryotes and Eukaryotes? Explain why some cells have telomeres and others don't. 4. A) Draw a cell with 2 pairs chromosomes as it goes through the cell cycle and indicate the main things that happen to its chromosomes at each stage (label: sister chromatids, homologous chromosomes,...
1. Using the following terms, describe the process of transcription a. Template strand, non-template/coding strand, DNA, RNA, RNA polymerase, 3 5, 5 3', uracil, promoter, termination sequence, enhancer, nucleus, cytoplasm. What process often follows transcription? How is the genetic code used in this process ?
DNA is double stranded, but only one strand is used as a template for transcription. How does the cellular machinery determine which strand to use as the template? Choose the best answer. O It always starts on the 5' end. O The sequence of the DNA that will be transcribed determines which strand will be used. O It always starts on the 5' end closest to the centromere. O The location and orientation of the promoter determine which strand will...
One strand of a section of DNA isolated from E. coli reads: Suppose that an mRNA is transcribed from this DNA using the complementary strand as a template. What will the sequence of the mRNA in this region be? What is the amino acid sequence of the proteins? Would the same proteins be made if the other strand of DNA served as template for transcription? Why or why not? If the T underlined in the above sequence was to go...
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