A resource on Life Sciences content. Mostly focused on the grade 12 syllabus. The content is in line with the CAPS document and examination guidelines.
@@user-vu8cn6ff5h Check out the videos for the other sections. My email address is in the about section of the channel, you can reach out if you need some specific assistance.
You have taught us the way you need to learn biology concepts! Understanding the Vocabulary will make you really understand the subject. Thank you so much for sharing!
My sibling and I decided to do a peace of mind DNA paternity test to make sure our dad was in fact our biological father. The results of the paternity test said he IS our Biological Father which we are extremely happy and relieved to know. But our question is about if we ever decide to do an ancestry/genealogy test as a family will the results of this test show us as a father/ children relationship? We ask this because we are so paranoid and worried an ancestry test will give completely different results than the paternity test. We know DNA is the same all over our body but we are afraid that since in paternity tests they only test 20+ markers and ancestry tests test thousands that it might give different results. Can you be so kind to explain to us if there is any remote possibility that we could get a different result, meaning that he might show as not our biological dad in an ancestry test result. We are so afraid and anxious about these DNA questions and topics and we just want to be sure we can trust the paternity test results. They were done with an accredited lab and we ourselves took our father's sample (toothbrush) to the facility and we were swabbed there. Everything was handled properly and we witnessed the whole process so there was no tampering or any funny business, I mention this so you have a little background info. We were extremely careful about it and even though it can't be deemed legal because we used a non traditional sample for our father the process was the same as if it would've been a chain of command. Thank you for your time.
Sorry for the delay in reply, With the current technologies, DNA paternity testing has an accuracy of 99.99% or more. So I would take that as reassurance. If you are specifically doing Y-chromosome analysis, it specifically shows paternal ancestry. The normal ancestry tests would use Autosomes (normal - not sex chromosomes). Hence it would be comparing markers from both paternal and maternal origin. Furthermore if you are not comparing your possible ancestry with that of your fathers, it wouldn't be of much value for showing paternity. Also remember you only inherit about 50% of your dad's DNA meaning half of his markers might not be in your DNA. I hope that this explanation is of some value to you.
Oh man finally I'm satisfied. I'm NEET (medical entrance exam in India) aspirant. I was actually confused b/w Centromere & centrosome. Btw where are you from sir
Hi there, I'm happy that you found it helpful. I'm from South Africa. The terms can be very confusing. In fact as a high school teacher, I wasn't satisfied with the textbook definitions of centriole and centrosome. That lead me to do a lot of research on university level information. Finally I produced this video to help clarify the misconceptions. Best wishes for your exam. Keep well and thanks for taking the time to comment.
