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Statement 1: Heterochromatin is characterized by tightly packed chromatin and low gene expression.

Statement 2: Histone acetylation is associated with increased gene expression.

Option: 1

Both statements 1 and 2 are correct.


Option: 2

Statement 1 is correct but statement 2 is incorrect.


Option: 3

Statement 1 is incorrect but statement 2 is correct.

 


Option: 4

Both statements 1 and 2 are incorrect.


Answers (1)

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Heterochromatin is a tightly packed form of chromatin that is associated with low gene expression, while euchromatin is a more loosely packed form of chromatin that is associated with high gene expression. Histone acetylation is a modification that can loosen the chromatin structure and increase the accessibility of DNA to transcription factors, leading to increased gene expression. Therefore, statement 1 and 2 are both correct. Hence option 1 is the correct answer.

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Divya Prakash Singh

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