Give two differences between a zygote and a fetus.

AcademicBiologyNCERTClass 8

The differences between Zygote and a Foetus are as follows:-

Foetus Zygote
1. It is developed from the embryo.1. It is formed by the fusion of the gametes (the sperm and egg).
2. A foetus is a multicellular structure.2. A zygote is unicellular structure.
3. It is found in the Foetus.3. It is found in the fallopian tube.
4. It is produced after cell division and cell labor division processes.4. It is produced after the processes of fertilization.
5. Well-defined body parts are present.5. Well-defined body is absent.


The zygote is, fertilized egg cell produced by the combination of a female gamete (egg or ovum) and a male gamete (sperm) (sperm). In the embryonic development of humans and other animals, the zygote stage is short and is immediately followed by cleavage, in which the single cell divides into smaller cells.

The zygote is the earliest developmental stage of a genetically distinct organism. Therefore, the zygote is diploid, as it has genes from both parents (carrying two sets of chromosomes). The fusion of haploid gametes to form a diploid zygote is a characteristic of the sexual reproduction of all organisms, excluding microbes.

Updated on 10-Oct-2022 12:46:34