Why would exact DNA replication and successful completion of mitosis be essential to the continuation of life?
Hiero
2009-03-14 20:48:42 UTC
Why would exact DNA replication and successful completion of mitosis be essential to the continuation of life?
Three answers:
?
2009-03-14 20:59:46 UTC
If it's not exact you get mutations- and some mutations cause cancer. Cancer is bad for life.
Mitosis is used in growth and repair. It's bad if we don't repair well... we wouldn't want to fall apart because of a flimsy group of cells that have a weak membrane wall that explodes if too much water enters it...
DNA is used in offspring- if the offspring have mashed up DNA, they aint going to live long. Not to mention the problems of breeding, especially if there are mized chromosome numbers.
It needs dna to make the cell fundamentals.. if you took a chromosome or a gene out of a collective single zygote cell, the cell wouldn't grow or if it did would grow into a mangled mess (genetics is pretty amazing.)
hope that helps.
?
2017-01-16 17:07:31 UTC
"Had DNA replication been got here upon to be one hundred% precise, Darwin's concept could have been ineffective on the spot through fact there could have been no mechanism to help evolution in asexual organisms." Why did you even placed that in the time of? DNA replication isn't appropriate and that facilitates exchange. DNA replication is simperfect through fact the cells make blunders whilst copying it.
Hymenoptera
2009-03-14 21:36:43 UTC
you started out as a single-celled zygote when your father's sperm nucleus merged with your mother's egg nucleus. Since then, every cell you have made in your body is the result of DNA replication, mitosis and cytokinesis. So, why is it essential??
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