Start with an Aa individual and draw out equal segregaton of alleles at anaphase I and II with one crossover. State whether different alleles segregate in meiosis I or meiosis II. Show centromeres.

Mendel has given three laws based on experiments carried out on Pea plant.

1- Law of dominance: It states that in a heterozygous individual (one with two different alleles for a specific trait), one allele (the dominant allele) is expressed in first generation, while the other allele (the recessive allele) is suppressed. The recessive allele is only expressed when both alleles are recessive.

2-Law of purity of gametes OR Law of seggregation:During gamete formation, these alleles segregate so that each gamete carries only one allele for a given trait. When two gametes unite during fertilization, the resulting offspring will have two alleles again.

3-Law of independent assortment: Alleles for different traits segregate independently of each other during gamete formation and the inheritance of one trait does not influence the inheritance of another trait.Independent assortment is responsible for the production of genetic variations in the organism along with crossing over.