4 ms·
Very good really. Because mutations in sperms are very low. So out of the million or so sperm running the rat race to the egg they all hold basically the same i
by knodi 15y ago
Very good really. Because mutations in sperms are very low. So out of the million or so sperm running the rat race to the egg they all hold basically the same info 50% (DNA) of you from your father and the egg will hold the other 50%(DNA) of you from the mother that will make 100% you. Environment factors will play relatively the same if spermA or spermB had made it to the egg. Only other factor is that the role of environment based on if the egg developed as a male or female factor.
- raphman 15y agoDo you imply that my brothers are actually identical to me, as their DNA is almost the same?
- gus_massa 15y agoDuring the production of sperms (and eggs), one of the steps has crossover: http://en.wikipedia.org/wiki/Chromosomal_crossover http://en.wikipedia.org/wiki/Chromosomal_crossover They get new chromosomes that are a combination of the two corresponding chromosomes from the father (or mother). The exact points in each chromosome where the crossovers happens are different (perhaps almost random), so each one of the sperms (eggs) is a very different unique snowflake. (And there are also a few mutations that make them slightly more unique.)