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:
• GCSE Maths (9-1)
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

[@skykiller9153]

harry dont got no girl

[@t4aha.s]

Harry just like me frfr

[@ORGMJay]

Harry wants to take the bloodline down with him

[@Shrigloin]

The greatest teacher of all time... GOAT!

[@wainmufungaa]

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

[@Cognitoedu]

If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform: cognitoedu.org/coursesubtopic/b2-gcse-aqa-h-t_8.15 - it's totally free, and has been built to make learning and revision as easy as possible. The main features are:
- Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown.
- Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on.
- 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

[@lilynunoo2586]

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

[@lilynunoo2586]

You're welcome

[@shalukaherath2371]

ur existence is the reason certain ppl pass their exams

[@beg392]

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

[@kimberlyjakosalem5607]

Thank you for this video ❤

[@youssefrahal2967]

MAN I LOVE U SO MUCH

[@bilalrazavlogs24]

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

[@katiedisney5866]

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

[@vibing_garfield3419]

Great video man! Really enjoyed it! Super helpful! stylllllllllllllllllll

[@user-uh5fn9oc7m]

Thank you so much, your videos are very helpful ❤

[@l.p.m6716]

I ❤ u guys. This helped save my exams

[@ayoubprozz6266]

Your explanation is perfect 🤩

[@Cognitoedu]

Glad to hear you think so!

[@ratsoup2262]

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 😁

[@Cognitoedu]

Really great to hear you found them so helpful - thanks!

[@ratsoup2262]

@@Cognitoedu I recommended you to all my friends and now they use it for both physics and biology

[@user-zi6yx7vk1s]

Best video ever thanks so much !!

[@nikta3679]

i love the new intro

[@ibawanhunlytan8606]

deserve more subs 💪💚

[@yoondatau3900]

Thankkkk you 😮

[@OmenPlays]

carrier is not mentioned tho

[@victorkainga1720]

So educative
Bravo

[@giselleclaze4204]

Thank you po ☺️

[@t4aha.s]

Our battle will be *legendary*

[@IslamGuider_10]

Thanks bud buddy bakaro

[@Alice-su3un]

ff genotype here 💪💪

[@user-td3nc8to5j]

How did Sam become a patient?

[@hamzalcfc]

that confused me as well

[@hypercriticalrobloxmasterz2805]

Great question

[@galactikhex]

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

[@JK-POP10]

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