New gene combinations arise at various levels:
1. recombination of genes in the linkage group due to crossing over in prophase I of meiotic division;
2. the divergence of homologous chromosomes from bivalents in the I meiotic division;
3. divergence of daughter chromosomes in the II meiotic division. In total, 2 ^ 46 combinations are formed during meiosis .;
4. fusion of germ cells belonging to different organisms (292 combinations).
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.