Vanke (SZSE: 000002, SEHK: 2202) is the largest residential real estate developer in the Peopleâs Republic of China.anke was listed on the Shenzhen Stock Exchange in 1991, the second listed company in the Shenzhen Stock Exchange after Shenzhen Development Bank. It had the largest market capitalisation in 2006 on the Shenzhen Stock Exchange.
This is the diploid chromosome condition and the paired chromosomes are called homologous. Meiosis transforms a diploid cell into four haploid granddaughter cells, each having a single copy of each chromosome. The process helps increase the genetic diversity of a species.
Crossing over Another mechanism that increases genetic variation is the process of crossing over, during which homologous chromosomes exchange genes.Crossing over = The exchange of genetic material between homologues; occurs during prophase of meiosis 1.This process: i Ã¯ occurs when homologous portions of two nonsister chromatids trade. Places during Prophase, I-x shaped chiasmata become visible at places where this homologous strand exchange. occursrossing over = The exchange of genetic material between homologues; occurs during prophase of meiosis 1. This process: i Ã¯ occurs when homologous portions of two nonsister chromatids trade. Places during Prophase, I-x shaped chiasmata become visible at places where this homologous strand exchange. occurs