EPISTASIS- A-level Biology Inheritance. Genetic crosses showing how one gene masks another

[@saniyasiddeka1364]

Hi, i literally have a mock tmrw and didn't understand this topic, thank you for posting!

[@MissEstruchBiology]

Good luck with the mock!!!

[@reyabanerjee9810]

Thank you so much for such a wonderful explanation! please keep posting such biology related videos, it helps a lot🙂

[@MissEstruchBiology]

🙂🙂 thank you. I'm so pleased it helped

[@wolfgangamadeusmozart1816]

I hope you are feeling okay!
Thank you so much for this.

[@MissEstruchBiology]

You're welcome! Hope it's helpful 😊

[@sachitsharma1661]

Thank you professor for such a wonderful explanation !!!

[@MissEstruchBiology]

You are welcome!

[@SonikaStudy]

I have my mock tomorrow. This was so helpful 🤗

[@MissEstruchBiology]

Good luck!!

[@Void-hc3nn]

i understand this topic fully because of your help thanks sooo much

[@MissEstruchBiology]

😄😄 I'm so pleased it helped

[@MIshaq-df9by]

Thank you for this video, It's really helpful!

[@MissEstruchBiology]

So glad it helped you 😊

[@missgirl7879]

I genuineky love u. Was so lost and exam in 5h

[@maysamahmood1595]

Thank you very much. I was definitely lost before finding this video😁

[@MissEstruchBiology]

You're so welcome ☺️☺️

[@Dllthf6_04]

Does gene 1 always mask over gene 2? Or can it be the other way round

[@boofoome3744]

I have an exam tomorrow and that helped me so much 🥰🥰❤
Thank you so much 💜💜💜💜

[@MissEstruchBiology]

Best of luck!!!

[@prajwalakambarcreations1986]

Thank you for this wonderful video

[@maryamarshad8493]

Hi, for the pedigree diagram, would we be told its epistasis or would we have to work that out?

[@MissEstruchBiology]

You'd either be told or be given information within the question to enable you to work out that it was

[@anumxoxo]

Hi! Would we need to know the phenotypic ratios off by heart?

[@MissEstruchBiology]

Only the 9:3:3:1 ratio for dihybrid crosses with heterozygous parents

[@dejanvukovic9763]

Great explanation

[@MissEstruchBiology]

Thank you!!

[@M10-y3b]

Thank you so much, lifesaver

[@MissEstruchBiology]

You're so welcome 😊

[@annearts5]

What about the brown the first gene is black and yellow right how come it's brown in the phenotype???

[@porcupineou]

are you talking about the pedigree?

[@crazyking_sigma]

Thank you!

[@MissEstruchBiology]

you're welcome 😊

[@snehashahid07]

I have made a 9 minute video on Epistasis , refer to that if still you have any doubts

[@NgaizaNgaiza-dl1vn]

Hey tell me about collaborative genes ☺️☺️☺️

[@thirshansubaskaran5488]

Thank you

[@MissEstruchBiology]

You're so welcome ☺️

[@tabonajaku-lc6te]

❤❤❤

[@MissCristina]

can I use a pencil in the exam?

[@MissEstruchBiology]

No, on the front page is specifies pen only

[@Masowe.]

i start with pencil, when i am sure of my answers then i write in pen then rub pencil

[@winniethepooh8766]

@@Masowe. good strat. might do that in the exam if i remember

[@Masowe.]

@@winniethepooh8766 sometimes these things get confusing, i day i had the whole place for answers covered up so now i get straight to pencil then rub it

[@Grace-td5dd]

@@MissEstruchBiology I thought pencils were allowed for diagrams and on graphs