Antigenic shift occurs when there is recombination between the genomes of the two viruses, creating new genes. This video describes reassortment of genes, no recombination. While this would produce a novel virus, it wouldn't produce a novel antigen, and therefore would not produce a pandemic. However, if you included an example where the gene for H1 recombined with the gene for H5, this would create a new gene -- H6. This novel antigen would be problematic.
Genetic Drift is a major evolutionary concept that is altogether different than what is described here. Genetic drift is a mechanism by which a random bottleneck event limits the genetic content that proceeds to the next generation. For example, if a family of naked mole rats lives underground and the ground randomly collapses (maybe a helicopter lands there) killing them all, but two naked mole rats survive because they happen to be foraging elsewhere, the resulting population is limited to the genetic content of the two survivors. Genetic drift can affect any population of evolving organisms (bacteria, archaea, eukarya, viruses). In contrast, antigenic drift and shift are specific concepts related to viral evolution and immune response. This video is a great explanation of antigenic drift versus shift, but it does not describe genetic drift. The title is incorrect.
Well I came here to learn how to drift with a manual.
Now I know how viruses drift, not dissapointed.
Antigenic shift occurs when there is recombination between the genomes of the two viruses, creating new genes. This video describes reassortment of genes, no recombination. While this would produce a novel virus, it wouldn't produce a novel antigen, and therefore would not produce a pandemic. However, if you included an example where the gene for H1 recombined with the gene for H5, this would create a new gene -- H6. This novel antigen would be problematic.
Seth Stake absolutely correct
That's what I was thinking! The antigens are still the same aren't they. Thanks!
Genetic Drift is a major evolutionary concept that is altogether different than what is described here. Genetic drift is a mechanism by which a random bottleneck event limits the genetic content that proceeds to the next generation. For example, if a family of naked mole rats lives underground and the ground randomly collapses (maybe a helicopter lands there) killing them all, but two naked mole rats survive because they happen to be foraging elsewhere, the resulting population is limited to the genetic content of the two survivors. Genetic drift can affect any population of evolving organisms (bacteria, archaea, eukarya, viruses). In contrast, antigenic drift and shift are specific concepts related to viral evolution and immune response. This video is a great explanation of antigenic drift versus shift, but it does not describe genetic drift. The title is incorrect.
you said my mind , cos i was wondering , how on earth would this genetic drift
The title is incorrect. Genetic Drift refers to something completely different. This is ANTIGENIC Drift/Shift, which is correct in the video itself.
Okie Dokie
Antigenic drift occurs in both influenza A and B whereas Antigenic shift occurs in Influenza A only
Newly discovered, RNA can have proofreading mechanisms similar to DNA.
yes it does
Best Teacher
Brilliant!!!
When will you upload your next video? I'm waiting haha
good job 👍👍👍
ما فهمت . بس عاشت ايدج 😂❤
Thank you so much
Thank you
Where my WGU D311 Night Owls at?
Nice
does this apply to MRSA?
Dont think so..as Mrsa is a bacteria and not a virus.
wrong graph. virus reproduction is exponentiell so the genetic drift should also show a exponentiel curve
she really just said pointmutation. cancel her
invisible due to black background
Amazing 😘😘😘🌹🌹🌹
Please use better brighter and wider font/pen for writing ✍
Or use a white back ground instead. Yours is a strain for eyes 👀
Thank you so much