generations? Do all genetic illnesses have their origin in a distant or recent mutation?
Biology - 3 Answers
Random Answers, Critics, Comments, Opinions :
1 :
because as we get older sperm MUTATIONS occur, sperm without tails or sperm which cannot enter the egg at all because theyre weak. Its really quite simple.
2 :
As men get older, their sperm detiorates, so the higher "quality" sperm is when they are younger...my dad was 37 when I was born and have had loads of physical problems....
3 :
New research indicates that the genetic quality of sperm worsens as men get older, increasing a man's risk of being infertile, fathering unsuccessful pregnancies and passing along possibly other genetic diseases to his children. A study led by scientists at Lawrence Livermore National Laboratory (LLNL) and the University of California, Berkeley, found a steady increase in sperm DNA fragmentation with increasing age of the study participants, along with increases in a gene mutation that causes achondroplasia, or dwarfism. The first changes were observed in men in their early reproductive years. http://www.emaxhealth.com/52/6169.html
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