Difference Between Zygote, Embryo And Fetus


 
 
Concept Explanation
 

Difference Between Zygote, Embryo And Fetus

A zygote forms after fertilisation. A zygote becomes an embryo. And finally, an embryo becomes a foetus. The main differences between zygote embryo and foetus are given on the next page.

S. No Zygote Embryo Foetus
1. A zygote is formed by the fusion of male and female gametes (sperm and egg) An embryo is formed by the repeated cell division of a zygote. A foetus is formed by the growth of an embryo.
2. A zygote is the beginning of the formation of a baby. An embryo is an unborn baby in the uterus in the early stages of development (up to 8 weeks) A foetus is an unborn baby in the uterus in the later stages of development (after 8 weeks till birth).
3. A zygote is a single cell. It is smaller than a full stop (.) An embryo is multicellular. The body features of growing baby in the embryo are not much developed. A foetus is also multicellular. The body features of developing baby (like hands, legs, head, eyes and ears, etc.) can be identified.
.... (More Text Available, Login?)
Sample Questions
(More Questions for each concept available in Login)
Question : 1

Which of the following are correct :

(a) A zygote is the beginning of the formation of a baby.

(b) An embryo is formed by the repeated cell division of a zygote.

(c) A foetus is formed by the growth of an embryo.

Right Option : D
View Explanation
Explanation
Question : 2

An embryo is formed by the repeated ______________ division of a zygote.

Right Option : C
View Explanation
Explanation
Question : 3

Which of the following are correct :

(a)  A zygote is formed by the fusion of male and female gametes (sperm and egg)

(b) A embryo is formed by the fusion of male and female gametes (sperm and egg)

Right Option : A
View Explanation
Explanation
 
 
Related Videos
Language - Hindi/English


Students / Parents Reviews [10]