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Crossing Increases Genetic Greatly Diversity Species Moss Describe

Crossing-over, where equal lengths of non-sister chromatids are exchanged during homologous chromosome association (bivalents) through chiasmata formation, increases genetic diversity by creating new combinations of alleles.

Crossing-over-ul, unde porțiuni egale de cromatide non-surori sunt schimbate în timpul asociierii cromozomilor omologi (bivalenți) prin formarea chiasmelor, crește diversitatea genetică prin crearea de noi combinații de aleli.

Front Crossing over greatly increases genetic diversity in this species of moss. Describe the process of crossing over and explain how it increases genetic diversity. [4 marks]
Back 1. Homologous pairs of chromosomes associate
/ form a bivalent;
2. Chiasma(ta) form;
3. (Equal) lengths of (non-sister) chromatids /
alleles are exchanged;
4. Producing new combinations of alleles;

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