What occurs differently in the Meiosis I vs II?
What are the stages of "ploidy" (2n 1n 4n)?
2007-01-19 13:47:29 · 2 answers · asked by An Agent of Chaos 5 in Science & Mathematics ➔ Biology
Meiosis is the form of cell division that is important for reproduction. During meiosis I, crossing over occurs, which is essential the exhange of genetic info. This helps increase genetic diversity which helps to deal with streses such as pathogens, etc. Thus, organisms that dont undergo meiosis are more suseptible to diseases. Meiosis II doesnt have crossing over.. 2n refers to a diploid cell whih is 2 sets of chromosomes, 1 n is a haploid cell, 4n refers to 4 sets of chromosomes etc..
As humans 2n=46.. Thus we have 23 pairs of homlogous pairs of chromosomes for a total of 46 chromosomes but 23 genetically unique chromosomes.
2007-01-21 22:17:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Meiosis I: Crossing-over and Independent Assortment
Meiosis II: None of the above.
Don't understand your second part.
2007-01-20 11:25:26 · answer #2 · answered by PIPI B 4 · 0⤊ 0⤋