I wanted to ask a question to clarify some simple concepts. We always hear that we have two copies of every gene (one from father and another from mother). When we say that, do we mean the 5-3 strand and 3-5 strand double stranded DNA? Or do we mean that there are actually two copies of the gene, each having its own 5-3 strand and 3-5 strand?
Amazintg video thanks! Is there a particular convention when putting different genotypes into the table? For example in the colourblindness Q you've put the recessive X^r in the first column. Intuitively, I'd have probably added it to the second? Thanks!
i think colourblindness will be X^r X^r, since colourblindness is a recessive allele. X^R X^r will mean that the mother is a carrier of colour blindness, but she herself will not be colour blind.
Hi Leah, I've had lots of request for videos this week, so I've decided that for the next two weeks instead of having a topic theme it is going to be subscribers choice fortnight. I'll add epigenetics and how this can lead to cancer to the list :)
hi miss, how did you get the 12.5% for the percentage for a girl. I did 0.25 x 0.5 and that gave me 0.125. 25 x 50 is 1250. so how do I get that to 12.5% :)
Hello, It was 25% probability for the condition and 50% for a girl. Half of 25 is 12.5% 0.125 is correct, but that's not as a percentage. Multiple by 100 to become percentage. Hope that helps 😊
Homo means Same, this means the 2 if the same allele, hero means different, so there are different alleles. Like RR would be homozygous and Rr would be heterozygous
also do you still have your topic questions on your website, the ones where there were questions for each of the subtopics in a topic if that makes sense aha
Hello Afraid not. Those didn't make the new site for a number of reasons. The main one being they had to many old spec questions and missing answers, both kept causing confusion
I’ve struggled so much on these exam questions but honestly I’m so much better informed , thank you !!
Amazing!!!!! So pleased it helped you 😀
Does anybody else really struggle with understanding this topic ??
I think the application of the topic to genetic diagrams can sometimes be really challenging!
Yeah 😢
Watching this 30mins before my mock exam :D
Good luck 🤞🤞
I’m watching this 30 mins from my final!
@@hopnoob6938 How did it go?
@@hopnoob6938 how did it go?
@@javhus100k3 it went okay actually, I found the video really useful for it :)
Watching this in 2022 for my biology paper 2. You are the best and have helped me through my entire 2 years.
2023 component 2 now xD
Amazing,the best video I have watched so far on this topic!🤩🤩🤩
aww thank you 😊 Really hope it helps with your studies!
Your videos are so helpful, thank you! I have my mocks next week ( biology paper 2 ) and this has boosted my confidence so much!
That is amazing, so pleased you're feeling more confident 😀 💪
watching this 30mins before my actual exam :D
hope it helped!
I have biology exam tommorow and I’m hoping this comes in handy!
I love this topic so much ❤️ sometimes it is abit hard to get it but ounce u get. It is so cool 😎!!!!!
Yes 🙌🙌🙌🙌 I love this topic
I wanted to ask a question to clarify some simple concepts. We always hear that we have two copies of every gene (one from father and another from mother). When we say that, do we mean the 5-3 strand and 3-5 strand double stranded DNA? Or do we mean that there are actually two copies of the gene, each having its own 5-3 strand and 3-5 strand?
Amazintg video thanks! Is there a particular convention when putting different genotypes into the table? For example in the colourblindness Q you've put the recessive X^r in the first column. Intuitively, I'd have probably added it to the second? Thanks!
Hi at 12:35 wouldn't X^R X^r, be colour blindness as the recessive allele is found only on the X chromosome?
i think colourblindness will be X^r X^r, since colourblindness is a recessive allele. X^R X^r will mean that the mother is a carrier of colour blindness, but she herself will not be colour blind.
I was wondering if you could do a video on Acetylation/Methylation topic?
Hi Leah,
I've had lots of request for videos this week, so I've decided that for the next two weeks instead of having a topic theme it is going to be subscribers choice fortnight.
I'll add epigenetics and how this can lead to cancer to the list :)
@@MissEstruchBiology Thank You :)
this vid good enough for OCR? any difference you know of?
Honestly, i could marry you😅 You’ve really helped me a lot so i thank you from the bottom of my heart😁 Keep doing what you’re doing😊😊
😆😆
So pleased it's helped you to understand!!
Amazing!
Thank you!!
@@MissEstruchBiology No problem! I’ve been looking at many of your videos on topics I don’t understand, and they’ve helped so much!
Im so pleased they are helping you!
Great video thank you
You're welcome 😊 Really pleased you think do and hopefully it helps you v with your studies
Great Video Ms!
Thank you :D
actually dope
haha thanks
hi miss, how did you get the 12.5% for the percentage for a girl. I did 0.25 x 0.5 and that gave me 0.125. 25 x 50 is 1250. so how do I get that to 12.5% :)
Hello,
It was 25% probability for the condition and 50% for a girl. Half of 25 is 12.5%
0.125 is correct, but that's not as a percentage. Multiple by 100 to become percentage.
Hope that helps 😊
hi! in the first monohybrid question, how do you know whether the carriers were heterozygous for the recessive allele or homozygous?
Homo means Same, this means the 2 if the same allele, hero means different, so there are different alleles. Like RR would be homozygous and Rr would be heterozygous
also do you still have your topic questions on your website, the ones where there were questions for each of the subtopics in a topic if that makes sense aha
Hello
Afraid not. Those didn't make the new site for a number of reasons. The main one being they had to many old spec questions and missing answers, both kept causing confusion
i don't even take biology and I'm not in alevels i just like punnet squares :D