Question: 51. Although all of the steps involved in expressing a gene can be regulated, for most genes impo…


51. Although all of the steps involved in expressing a gene can be regulated, for most genes important point of control is: the most A. transcription initiation. B. RNA processing. C. RNA transport and localization. D. mRNA degradation. E. mRNA translation. 52. Nuclear organization can help a cell coordinate the expression of multiple genes by bringing those genes requiring the same trans factors in close proximity in regions called A) micro nova B) transcriptional factories C) snRNP centers D) central stations E) poly ribosomes 53. Regulating the activity of aminoacyl tRNA synthetase regulates gene expression at what level? A. chromatin structure B. transcriptional regulation C. post-transcriptional regulation D. translational regulation E. post-translational regulation 54. Transcription factors in eukaryotes usually have DNA binding domains as well as other domains that can bind to other things. Other than DNA, what else would transcription factors be expected to bind? A) repressors B) ATP C) protein-based hormones D) other transcription factors E) tRNA 55. The phenomenon in which RNA molecules in a cell are destroyed if they have a sequence plementary to an introduced double-stranded RNA is called NA interference RNA obstruction. C) RNA blocking. D) RNA targeting. E) RNA disposal. 56. Which of the following is an example of post-transcriptional control of gene expression? A) the addition of methyl groups to cytosine bases of DNA B) the binding of transcription factors to a promoter C) the removal of introns and alternative splicing of exons D) gene amplification contributing to cancer E) the folding of DNA to form heterochromatin
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51. Although all of the steps involved in expressing a gene can be regulated, for most genes important point of control is: the most A. transcription initiation. B. RNA processing. C. RNA transport and localization. D. mRNA degradation. E. mRNA translation. 52. Nuclear organization can help a cell coordinate the expression of multiple genes by bringing those genes requiring the same trans factors in close proximity in regions called A) micro nova B) transcriptional factories C) snRNP centers D) central stations E) poly ribosomes 53. Regulating the activity of aminoacyl tRNA synthetase regulates gene expression at what level? A. chromatin structure B. transcriptional regulation C. post-transcriptional regulation D. translational regulation E. post-translational regulation 54. Transcription factors in eukaryotes usually have DNA binding domains as well as other domains that can bind to other things. Other than DNA, what else would transcription factors be expected to bind? A) repressors B) ATP C) protein-based hormones D) other transcription factors E) tRNA 55. The phenomenon in which RNA molecules in a cell are destroyed if they have a sequence plementary to an introduced double-stranded RNA is called NA interference RNA obstruction. C) RNA blocking. D) RNA targeting. E) RNA disposal. 56. Which of the following is an example of post-transcriptional control of gene expression? A) the addition of methyl groups to cytosine bases of DNA B) the binding of transcription factors to a promoter C) the removal of introns and alternative splicing of exons D) gene amplification contributing to cancer E) the folding of DNA to form heterochromatin

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