GCSE Biology - Family Trees / Family Pedigrees #74

This video covers:
- What family trees are and how they work
- How to use keys
- The example of cystic fibrosis
- How to use family trees to predict the chance of a disease being inherited

Exam board specific info:
AQA - Everything is relevant to your course!
IGCSE Edexcel - Everything is relevant to your course!
Edexcel - Everything is relevant to your course!
OCR 21st Century - Everything is relevant to your course!
OCR Gateway - Not relevant to your course

Maths Playlist:

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GCSE Biology Playlist:

GCSE Physics Playlist:

[Cognitoedu]

- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
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- Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like.
- A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts.
- A comprehensive bank of past exam papers, organised both by year, and also by topic.

Amadeus & Tom

[Shrigloin]

The greatest teacher of all time... GOAT!

[wainmufungaa]

Thank you soooo much man🙏🏾🙏🏾🙏🏾❤️be blessed...the world needs people like you

[katiedisney]

does anyone know how you would go about figuring out genotype when no indication is given for a carrier? i.e. no half full square/circle

[lilynunoo]

Thank you so much this realllyy helped me...I didn't understand a thing during bio class but now I do. y'all are a blessing fr

[beg]

Wow, amazing Teacher. Found this so tricky but after watching this video it made sense. Huge thank you, keep up the amazing work!

[bilalrazavlogs]

Such a Complex topic explained so well Understood every bit. May be your channel must be in the school's syllabus. ThankYou

[shalukaherath]

ur existence is the reason certain ppl pass their exams

[ratsoup]

I don't make comments at all but I do want to show my appreciation for your videos. Its no exaggeration but your videos are much better than what my lessons teach. It's my Biology p6 on Tuesday and p4 on Thursday which means I wont be watching these videos anymore but before I leave, I would like to show my thanks one last time 😁

[uhfnocm]

Thank you so much, your videos are very helpful ❤

[vibing_garfield]

Great video man! Really enjoyed it! Super helpful!

[JK-POP]

Le serafimm were going straight to victoryyy im a...

[galactikhex]

people now be saying blue and pink cant be used for boy girl genders. Also "what about other genders"