Top answers
Biology
A Level
What is the key difference between the rough endoplasmic reticulum (RER), and smooth endoplasmic reticulum (SER)?
The RER is associated with translation of proteins, including protein folding. It is known as 'rough' because it is has ribosomes immersed in it, which makes it easy to remember the protein function.
What are the key principles of evolution?
Variation: there is variation in the physical and behavioural characteristics of a set of organisms. This variation is caused by a combination of genetic and environmental factors.
