Random Fertilization
The fusion of two haploid gametes results in the formation of a diploid zygote
As meiosis results in genetically distinct gametes, random fertilisation by egg and sperm will always generate different zygotes
The fusion of two haploid gametes results in the formation of a diploid zygote
- This zygote can then divide by mitosis and differentiate to form a developing embryo
As meiosis results in genetically distinct gametes, random fertilisation by egg and sperm will always generate different zygotes
- Identical twins are formed after fertilization, by the complete fission of the zygote into two separate cell masses