Histone modifying enzymes can be over- or under-expressed in a variety of human diseases and cancers. How would overexpression of histone aceryltransferases affect transcription throughout the genome? O transcription could be increased or decreased depending on which amino acids in histone proteins were modified by this enzyme O transcription would be decreased O transcription would be increased O transcription would not be affected

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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QUESTION 12
Histone modifying enzymes can be over- or under-expressed in a variety of human diseases and cancers. How would overexpression of histone acetyltransferases affect transcription throughout the genome?
O transcription could be increased or decreased depending on which amino acids in histone proteins were modified by this enzyme
O transcription would be decreased
O transcription would be increased
O transcription would not be affected
QUESTION 13
Transcriptional enhancers are:
O A. operator sequences that repress transcription by blocking RNA polymerase initiation.
O B. binding sites for general transcription factors.
O C. binding sites for catabolite activating protein (CAP).
O D. promoter-proximal regulatory sequences that recruit TATA-binding protein (TBP).
O E. regulatory sequences that activate transcription from distant cis-linked promoters.
QUESTION 14
The yeast MCM1 protein differentially regulates genes in a haploids, a haploids, and a/a diploids, and its function as either a transcriptional activator or repressor depends on the combination of factors expressed from the:
O A. X-chromosome.
O B. GAL80 and GAL3 genes.
OC. MAT locus.
O D. locl and laco genes.
ОЕ. МСМ ореron.
Transcribed Image Text:QUESTION 12 Histone modifying enzymes can be over- or under-expressed in a variety of human diseases and cancers. How would overexpression of histone acetyltransferases affect transcription throughout the genome? O transcription could be increased or decreased depending on which amino acids in histone proteins were modified by this enzyme O transcription would be decreased O transcription would be increased O transcription would not be affected QUESTION 13 Transcriptional enhancers are: O A. operator sequences that repress transcription by blocking RNA polymerase initiation. O B. binding sites for general transcription factors. O C. binding sites for catabolite activating protein (CAP). O D. promoter-proximal regulatory sequences that recruit TATA-binding protein (TBP). O E. regulatory sequences that activate transcription from distant cis-linked promoters. QUESTION 14 The yeast MCM1 protein differentially regulates genes in a haploids, a haploids, and a/a diploids, and its function as either a transcriptional activator or repressor depends on the combination of factors expressed from the: O A. X-chromosome. O B. GAL80 and GAL3 genes. OC. MAT locus. O D. locl and laco genes. ОЕ. МСМ ореron.
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