Beyond Mendelian Genetics: Complex Patterns of Inheritance
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- เผยแพร่เมื่อ 8 ก.ค. 2024
- We've already learned about Mendelian genetics, which taught us about dominant and recessive alleles and the laws that govern their inheritance. But things are not always so simple. There are situations that go beyond this basic structure, with things like pleiotropy, epistasis, and polygenic inheritance. What do these terms mean? Let's find out!
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I would like to thank professor Dave for getting me through my college classes 😝
Hiii professor............ looking new without long hair
hey very beautifully and simplistically put for a rather complex subject. very clear and easy to understand, thanks, professor Dave.
@3:30 not exactly true that the 'i' produces nothing. It produces a smaller saccharide. This allele is also referred to as 'H' in the bombay blood type system, with 'h' producing an even smaller saccharide than 'H'.
3:29 This is something that even textbooks get wrong
If you have type O blood, you totally do have a carbohydrate antigen on your red blood cells. It is called the H antigen. The H antigen is missing a sugar residue when compared to the A antigen or the B antigen. So it's just a shorter saccharide. People with Bombay syndrome (hh blood group) have neither H, nor A, nor B antigen.
Thanks so much
NOOOOOOOO SCIENCE JESUS HE CUT HIS HAIR 😭😭😭😭😭😭😭
How neat!
Great timing I’m in Unit 5 Ap Biology: Heredity
istg we r the luckiest batch yet
hair cut looks great
fascinating
In the dog example i am bit confused.
1. Pigment Production & Pigment deposition are two different cases?
2. The black coat color (BB/Bb) going to be homozygous dominant and Heterrozygous dominant? so what is with bb?
Sorry i m being.. nerd
One gene determines the color of the pigment, and the other gene determines whether that pigment gets deposited onto the fur or not.
@@ProfessorDaveExplains so bb gene being small "b" both are recessive, i.e the coat color is going to be golden and no pigment deposition?
No, bb would mean the recessive fur pigment, which is brown. Pigment deposition is controlled by a completely separate gene, and the dog will only be yellow if neither black nor brown pigment is deposited.
@@ProfessorDaveExplains Hi Prof. Dave
Being a genetics student, yesterday we were taught pedigree analysis in which we can predict certain trait (normally autosomal dominant, and sex linked diseases). During the arrangement of the generation in the diagram we count the generation and give them numbers 1,2 and so on.
My question is that in an example say for hameophllic condition a sufferer male marries a carrier female say in 3rd generation, but unknown to that the male,female who is being married was adopted and now get a carrier female from the marriage.
My doubt is about the adoption, since she was not the family member (not born but later become a part) is the disease which was not present in family earlier now has become a trait. So will be correct to carry our further analysis, since trait is coming form "outside" population and was not earlier in "original" population? If, yes will that maintain purity of the analysis?
@@hrushikeshhasabnis8819 You are correct, the trait would have been introduced via the other parent.
is there gonna be a video debate between you and (non) dr kent hovind, like when aron ra did it?
There already is one. It was painful. One example:
When asked what accredited university hovind went to, hovind responded with "dogs produce dogs".
@@cammybaby01 not the kind where hovind was talking about pine cones the entire time, the one where it was many videos
No pine cones didn't come up.
Ha! I had Hovind on my radio program many times over the years. He never listens and just repeats the same old crap over and over again.
I have a question. I'm writing a story about vampires that's going to be nonsense but I wanted to create a scientific foundation for it. Among the vampire races, there are some who have greater abilities inherited from an ancient breed but only maybe one in a hundred vampires inherits it. Mind you, the vampires in my story are genetically altered upon their rebirth/transformation and this is an abnormal phenotype/genotype allowing a few to become more powerful (think Dracula). What ideas can you provide for such an occurrence because most of this flies over my head but I seriously want a foundation for this one in a hundred vampires that's more powerful due to their genetic inheritance (or whatever makes sense to you guys)
This sounds like a manga/manhwa that I’ve read before ..
I apprciat u pro
Yay
Not short hair professor dave
Im sad you lost ur hair but ur lookin freshh
..
who here is in 7th grade?
nae nae
First!
Sir why did you cut off your hair ... they were nice
that intro is gold lol
Great video, however, you look bald without the long hair, yet there is still time for it to grow back. ❤️🩹