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KonstantinChe [14]
3 years ago
9

What should you do if a test tube breaks while you are conducting a laboratory experiment?

Biology
2 answers:
astra-53 [7]3 years ago
7 0
Don't touch the glass and tell your teacher about it. Don't try to clean the mess until the teacher is informed. 
adoni [48]3 years ago
4 0
Step away and inform your instuctor
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chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.

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