Answer: sure 1. Only one chromosome from each homologous pair is included randomly when a parent forms a gamete. So, an offspring might inherit a different combination of chromosomes (and alleles) compared to its siblings. 2. 1 Gene variability (can be quantified as the average percentage of loci that are heterozygous)2) nucleotide variability (genetic variation at the molecular level of DNA)
Explanation: to simplify this a little bit no one person will ever be genetically identical to another because humans require 2 people to produce offspring, not 1 if we only required 1 offspring would be genetically identical to the parent
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