2.6.3 Meiosis
Significance of Meiosis
results in formation of haploid cells
genetic variation
independent assortment in anaphase 1 and 2 means random distribution of genetic material
crossing over in prophase 1 shuffles alleles
Interphase
Prophase 1
Metaphase 1
Anaphase 1
Telophase 1
Prophase 2
Metaphase 2
Anaphase 2
Telophase 2
Cytokinesis (in animal cells)
Sammer Sheikh
haploid gametes needed for sexual reproduction; when fertilisation occurs normal chromosome number is maintained
homologous chromosomes: matching chromosomes containing the same genes at the same loci (place); may contain different alleles; 1 maternal and 1 paternal
haploid gametes undergo random fusion with a haploid gamete of a different organism