Chromosomes Simplified Revision Notes for GCSE AQA Biology Combined Science

Revision notes with simplified explanations to understand Chromosomes quickly and effectively.

Learn about Cell Division for your GCSE Biology Combined Science Exam. This Revision Note includes a summary of Cell Division for easy recall in your Biology Combined Science exam

247+ students studying

Cell Division Quizzes

Test your knowledge with quizzes.

Cell Division Flashcards

Practice with bite-sized questions.

Cell Division Questions by Topic

Prepare with real exam question.

1.2.1 Chromosomes info Note Genetic information is organized into structures called chromosomes, which are made up of long, tightly coiled strands of DNA . info Note Genes are short sections of DNA located on chromosomes. Each gene provides instructions for making a specific protein, which influences a particular characteristic or trait. Therefore, each chromosome carries many genes. In human body cells, there are 23 pairs of chromosomes —a total of 46 chromosomes . You inherit one chromosome of each pair from your mother and the other from your father. Sex cells (gametes), such as sperm and egg cells, are an exception. They contain only 23 chromosomes (one from each pair), ensuring that when they combine during fertilization, the resulting embryo has a full set of 46 chromosomes. info Note The nucleus is the control centre of the cell and contains your genetic information .

Only available for registered users.

500K+ Students Use These Powerful Tools to Master Chromosomes For their GCSE Exams.

Enhance your understanding with flashcards, quizzes, and exams—designed to help you grasp key concepts, reinforce learning, and master any topic with confidence!

40 flashcards

Flashcards on Chromosomes

Revise key concepts with interactive flashcards.

Try Biology Combined Science Flashcards

4 quizzes

Quizzes on Chromosomes

Test your knowledge with fun and engaging quizzes.

Try Biology Combined Science Quizzes

29 questions

Exam questions on Chromosomes

Boost your confidence with real exam questions.

Try Biology Combined Science Questions