anon525as t1_j4zidhj wrote
Reply to comment by deadcommand in Given that reproduction is difficult or impossible when both animals have different numbers of chromosomes, how did so many species evolve to have so many different numbers of them? by MercurioLeCher
Idk about chromosomes part of this post's context. But adding to the evolution part for anyone who's interested.
When cells divide and grow the genetic code isn't copied 100% correctly. There are errors, some get fixed some don't. The ones that don't get fixed and continue to exist are what we call cancer.
Genetic mutation is a random thing that just happens when cell divide and grow because of not 100% being copied exactly the same. If there is a mutation which gives the individual an edge over other beings of the same species then it becomes easier for them to survive and reproduce. As their offspring increase and the ones with this mutation absent die or have less offsprings we see what we know as "nature's selection"
shitivseen t1_j4zrnbl wrote
To clarify: The vast majority of genetic mutations do not cause cancer. Only when the mutation alters the function of tumor suppressor or pro-oncogenic genes the risk of cancer increases. Additionally there are pathways cells can utilize to prevent cancer development even if a single one mutates. A rule of thumb is that six of these specific genes need to be mutated to actually cause cancer (this can vary of course).
PoopLogg t1_j4ztif9 wrote
> >When cells divide and grow the genetic code isn't copied 100% correctly. There are errors, some get fixed some don't. The ones that don't get fixed and continue to exist are what we call cancer. >
Sometimes it's a cancer, sometimes it's a webbing between your fingers, and that helps you glide when you fall off a tree, and in a million years you're a bat.
[deleted] t1_j514y4s wrote
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No_Ingenuity3366 t1_j4zp51q wrote
Your partly correct only cell devision DNA makes two exact copies that can repear themselves to 100%. When DNA is dammaged by toxic intake true food and environment DNA alters. RNA comes in 3 forms mRNA tRNA and rRNA with each their own fundamental function of the genome translation into practice. However when the genome(DNA) is dammaged the RNA takes over the error and can't fixt it so altered/dammaged proteins get build and altered processes get activated with auto-immuun disease and cancer as a consequence.Genetic mutation is not random it's bonded by toxic environment and ultraviolet light. All chemical elements not from nature in human body (foreign) is toxic and stacksup in organs which leads to disease.
PhantomSkyz t1_j4zwyp7 wrote
>genetic mutation is not random
You were doing really good up until this point... Then I stated rereading your whole post and I'm pretty confident the latter half is mostly inaccurate.
E: actually, besides the 3 types of RNA, this is entirely inaccurate.
E2: Whatever bs you just tried coming back with got auto hidden. The person you were referring to doesn't have peer reviewed studies on the topic anyway.
E3: idk why you keep getting auto hidden, likely poor behavior. Anyway, obviously RNA can't repair missing data, that's literally not it's job... Dunno why you tried to change the subject though.
E4: whelp, you're a lost cause, 3 comments and not a single one shows up.
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