Principles of Inheritance and Variation
Inheritance of Two Genes
- Both genes and chromosomes are transferred from generation to generation without any change.
- Both alleles and chromosomes follow law of segregation
- Both genes and chromosomes follow law of independent assortment.
- Before cell division, both the chromosome and an allele of a gene get replicated. During mitosis, replicated chromosome and allele split which pass into the 2 daughter cells.
- Finally both segregate during gamete formation, so that a gamete receives one allele and one chromosome of each pair.
- Fusion of haploid gametes restores the diploid chromosome number and allele pairs in offspring.
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