Learn about and revise how to simplify algebra using skills of expanding brackets and factorising expressions with GCSE Bitesize OCR Maths.

In algebra, letters are used to stand for values that can change (variables) or for values that are not known (unknowns). A term is a number or letter on its own, or numbers and letters multiplied ...

Researchers have discovered a method to simultaneously measure gene number and protein expression in individual cells. The fluorescence microscopy technique could permit a detailed analysis of the ...