Active transcription occurs where with respect to matrix attachment regions (MARs)?
| within heterochromatin regions a large distance from MARs |
| within euchromatin regions a large distance from MARs |
| within centromeric heterochromatin near MARs |
| within euchromatin regions near MARs |
| within the telomeres near MARs |
B. Is correct option.
Heterochromatin is the part of chromatin that is less active or abundant. This part does not participate in active transcription. The euchromatin part of chromatin takes place in active transcription. The active transcription always supposed to initiate far away from the mars regions (matrix attachment regions ).
Active transcription occurs where with respect to matrix attachment regions (MARs)? within heterochromatin regions a large...
In eukaryotic genomes, regions of _____________________ are transcriptionally active while regions of ____________________ are transcriptionally silent. A) Heterochromatin; euchromatin B) Euchromatin; heterochromatin C) None of the above Which of the following proteins can regulate eukaryotic gene expression WITHOUT binding to the DNA in the regulatory region? A) repressors B) enhancers C) co-activators D) transcription factors In eukaryotes, transcriptional activity can be regulated by methylation of a dinucleotide sequence called "CpG." This modification occurs at a: A) Adenine B) Cytosine C)...