2007-10-26 17:56:03 · 6 answers · asked by Nowreen C 2 in Science & Mathematics ➔ Biology
crossing over and law of segregation
2007-10-26 18:09:46 · answer #1 · answered by Hemanshi B 2 · 1⤊ 0⤋
Well there is the retrovirus which can be incorporated into the DNA and become variations to the original DNA.
There is also the possibility of mutation as the DNA is copied before the split
2007-10-27 01:06:11 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Hi. Read this to understand. http://www.answers.com/main/ntquery?s=meiosis&gwp=13
2007-10-27 01:03:13 · answer #3 · answered by Cirric 7 · 0⤊ 0⤋
The male and female chromosomes from the egg and sperm.
2007-10-27 02:50:55 · answer #4 · answered by Angelux 2 · 0⤊ 0⤋
-crossing over
-random fusion of gametes
2007-10-27 03:03:47 · answer #5 · answered by rose 2 · 0⤊ 0⤋
remember, it does that weird chromosome crossing thing where it exchanges DNA? it does that twice
2007-10-27 01:13:40 · answer #6 · answered by Anonymous · 0⤊ 1⤋