Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Crossing Over NOTES Crossing Over DNA: genetic material packaged in chromosomes Gene: a segment of DNA found on a chromosome Chromosome Number diploid Normal body cells: 2n have a full set of paired chromosomes haploid Gametes: n have a full set of single chromosomes allele -is the form of a gene (example: blue eyes or brown eyes) Homologous- pair of identical chromosomes tetrad- four chromatids in a pair of homologous chromosomes 1 Crossing Over NOTES Crossing Over When does it happen: prophase 1 of meiosis What happens: in a homologous pair DNA from similar sections of the chromosome change places Results in Genetic Variation in offspring The law of independent assortment states that genes separate independently of one another 2