GCSE Biology - Chromosomes and Mitosis Exam Questions and Answers 100% Correct

GCSE Biology - Chromosomes and Mitosis Exam Questions and Answers 100% Correct what are chromosomes - Answer️️ -coiled up lengths of DNA molecules what do genes control? - Answer️️ -development of different characteristics body cells have how many copies of each chromosome? - Answer️️ -2 how many pairs of chromosomes do human cells have? - Answer️️ -23 define mitosis - Answer️️ -cell division forming two identical daughter cells in multicellular organisms what is mitosis used for? - Answer️️ -grow or replace cells before a cell divides what first does it do? - Answer️️ -grow and increase the number of ribosomes and mitochondria after an increase in the number of subcellular structures, what happens in the cell cycle? - Answer️️ -DNA duplicates what does the duplication of DNA form? - Answer️️ -x-shaped chromosomes decscribe the first stage of mitosis - Answer️️ -chromosomes line up at the centre of the cell and cell fibres pull them apart