The conditions on early Earth, some three to four billion years ago, are thought to be much different from what they are today. To begin with, the astronomical phenomenon called “the big bang” is defined by a theory proposing that the earth was one of the larger particles that coalesced after the initial universe explosion, or big bang, that spewed all the particles in the universe away from a central point and destined them to slowly revolve around that point.
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Answer:
discovery in 2008 where researchers found the ACTN3 gene known as the super sprinter gene that controls fast twitch muscle fibers in sprinters. this gene is apparent in a lot of sprinters, and we know it is a mutation because about 18% of people today actually have 2 defective ones, thus not having the ACTN3 gene at all.
There's this other famous one where this gene low-density lipoprotein receptor-related protein 5, or LRP5 causes extra bone density. usually when LRP5 is inhibited or impaired, this causes osteoporosis, but when it is mutated a different way, it can cause increased bone density. a bunch of generations of a family had never broken a bone in their life because of this. cool stuff.
There's also this trait originating from Africa that people with the sickle cell anemia, no matter if it is active or not, have some resistance towards malaria, good mutataion.
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Answer/Explanation:
Yes, although they have similarities, meiosis and mitosis are different.
<h3>Similarities</h3>
Meiosis and mitosis are both types of cell division that results in the production of daughter cells.
They go through similar processes of prophase, metaphase, anaphase, and telophase.
<h3>Differences</h3>
However, mitosis produces two genetically identical diploid daughter cells from a diploid parent cell.
Meiosis produces four genetically different haploid cells from a diploid parent cell.
There are two rounds of cell division in meiosis, and only one round in mitosis.
