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Acetylation: addition of an acetyl group to a histone molecule. Forces DNA strands apart, allowing easier access for RNA polymerase for transcription. Therefore increases expression of target gene(s) due ...

Separating different sized hydrocarbons (from crude oil)Different length hydrocarbons have different strength VDW forces between their moleculesTherefore longer length hydrocarbons have stronger VDW force...

Phospholipids are amphipathic molecules i.e. they have a hydrophilic (“water-loving”), polar head end, and a hydrophobic (“water-fearing”), nonpolar tail end (1 mark). The major phospholipids in most anim...

The latter would seem to make sense, as it is a direct translation of the English "I have lived/have been living here for 4 years", however, when desc...

The writer uses strong meaningful language; mainly adjectives to create a strong impact on the reader. 'Steinbeck' uses adjectives such as; 'dark, motionless, humid, quiet' to describe what the night was ...