DNA structure and function for A-level Biology. Nucleotide monomer and polynucleotide polymer

[@adamrose6809]

I’m literally going to watch all your videos before I sit my A2 exams. I’m so glad I found your KZbin channel because you explain everything so clearly and concisely which makes it so much easier for me to understand all the topics. You’re a legend Miss Estruch!

[@MissEstruchBiology]

Aww thank you for such great feedback. i'm so pleased the vids are helping you. Good luck with your studies!

[@Angela-gs1cp]

Your videos are honestly so helpful. Thank you!

[@MissEstruchBiology]

Glad you like them!

[@athenaraptor5638]

This video is really helpful and clear :)

[@MissEstruchBiology]

So pleased it helped 😀

[@anasmohamed7110]

I don’t get why the phosphodiester bond is represented as one (bold blue) line if it’s actually 2 lines (2 ester bonds)?

[@totow5300]

Hi your videos are so so helpful, thank you! Do we need to know about purines and pyrimidines? I can’t find them on the spec but was taught about them in class.

[@MissEstruchBiology]

Hello, no, that is not on the specification but it could be useful beyond the specification information for the essay on paper 3.

[@louisexxxxasasasa2567]

Is the condensation reaction to form a polynucleotide between the the deoxyribose sugar of 1 nucleotide + the phosphate group of another separate nucleotide? Thanks

[@MissEstruchBiology]

yes, that's correct

[@louisexxxxasasasa2567]

@@MissEstruchBiology thank you!

[@oliviaglanville8472]

I was taught about purines and pyrimidines but can't find this on the spec - should I still learn it? Great videos by the way :)

[@MissEstruchBiology]

Thank you. Purines and pyrimidines are often taught as extra information, but it is not on the new AQA specification that you need to know about them so you would not be questioned on them in an exam.

[@sh9078]

Thank you, your videos are really good

[@MissEstruchBiology]

You're so welcome and I'm glad it was helpful.

[@omaralakaidi1307]

Hi love the videos was wondering if you've finished the videos for Topic 1?

[@MissEstruchBiology]

Hello, thank you! I have all the content made, and I just have the final 2 videos to upload - Enzyme function Factors that affect enzymes. Both should be uploaded next week.

[@omaralakaidi1307]

@@MissEstruchBiology okay great Im going into year 13 and have mocks when I get back and love to use your videos for revison, just wondering how much of the course do you have left to upload?

[@MissEstruchBiology]

6 Y12 videos (2 x enzymes, mitosis, monoclonal antibodies, genetic code and protein synthesis. For Y13, most of topic 5,6 and 7 are uploaded, but i still have a fair few in topic 6 to go. Good luck with the mocks!

[@omaralakaidi1307]

@@MissEstruchBiology ah okay thank you so much!!!

[@saniyasiddeka1364]

Do we need to know about how DNA strands are anti parallel

[@MissEstruchBiology]

Hello , Yes, but you don't need to know about the 5 prime and 3 prime carbon positions.

[@behappy1452]

@@MissEstruchBiologysorry to intrude, apparently it came up in recent aqa papers, i have no idea, but ages ago I was watching a video from 'tailored tutors DNA replication' and all the comments were talking about those positions.

[@MissEstruchBiology]

@@behappy1452 Hello, I don't remember seeing it a question, but if it was it would be considered an application question and something that would be possible to answer using the information provided. Some teachers may discuss it (I used to also in lessons) to give a more detailed understanding of the process.

[@haabeel7702]

cheers

[@jasminehodges5907]

❤️

[@MissEstruchBiology]

Thank you!

[@areebahaque5916]

Miss I wanna email you can you provide your email address.Also please make videos for Edexcel as well

[@MissEstruchBiology]

Hello it's [e-mail]

[@areebahaque5916]

​@@MissEstruchBiologyMISS PLEASE make videos for Edexcel ppl as well