DNA that is transcriptionally active Select one: a. is more susceptible to DNase I digestion b....
DNA that is transcriptionally active
Select one:
a. is more susceptible to DNase I digestion
b. is tightly packed into a solenoid arrangement
c. contains unacetylated histones
d. is more condensed than nontranscribed DNA
Hint: it's not c.
Homework Answers
DNA that is transcriptionally active - (a) is more susceptible to DNase 1 digestion. When the DNA is transcriptionally active then chromatin stay in it's euchromatin state and DNase1 is more active in this part to cut the DNA.
- when DNA is tightly packed in solenoid arrangement then chromatin is in heterochromatin state and this is not transcriptionally active.
- unacetylated histones change euchromatin to heterochromatin which is not transcriptionally active.
- When the DNA is going to transcribe then it has loosen itself from the histone core protein that is the euchromatin but non transcribed DNA is highly condensed that is heterochromatin.
Option (a) is correct.
Add Answer to:
DNA that is transcriptionally active
Select one:
a. is more susceptible to DNase I digestion
b....
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The classic experiment that examined DNAse I sensitivity of chicken embryonic DNA from different tissues and...
The classic experiment that
examined DNAse I sensitivity of chicken embryonic DNA from
different tissues and at different developmental stages shows that:
(Select all that apply.) A. the gene expression pattern changes
during development. B. DNAse I sensitivity comes from sporadic
mutations occurred during development. C. the chromatin structure
changes in the course of development. D. DNAse I sensitivity only
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Key Experiment Question: Is chromatin structure altered during transcription? Method DNA's sensitivity...
The classic experiment that examined DNAse I sensitivity of chicken embryonic DNA from different tissues and...
The classic experiment that examined DNAse I sensitivity of chicken embryonic DNA from different tissues and at different developmental stages shows that: (Select all that apply.) A. the gene expression pattern changes during development. B. DNAse I sensitivity comes from sporadic mutations occurred during development. C. the chromatin structure changes in the course of development. D. DNAse I sensitivity only occurs in chicken but in no other organisms.
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The classic experiment that
examined DNAse I sensitivity of chicken embryonic DNA from
different tissues and at different developmental stages shows that:
(Select all that apply.) A. the gene expression pattern changes
during development. B. DNAse I sensitivity comes from sporadic
mutations occurred during development. C. the chromatin structure
changes in the course of development. D. DNAse I sensitivity only
occurs in chicken but in no other organisms.
Key Experiment Question: Is chromatin structure altered during transcription? Method DNA's sensitivity...
The observation that in any DNA sample, A T and G C A. DNase sequencing An analytical method that determines which segments of DNA are bound by a particular B. Chargaff's rule protein factor, such as a transcription factor C. ChIP sequencing D. Euchromatin E. Histone acetylation F. major groove - # Areas associated with a eukaryotic gene that are where most DNA methylation occurs. # An analytical technique that involves a small slide or chip with many segments of...
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