Question

What is formed immediately after fertilization?
A. Placenta
B. Foetus
C. Embryo
D. Zygote

Answer 1

Hint: Fertilization is a process during which the spermatozoon fuses with the egg cell in the uterine tube. The fertilization results in the formation of a fertilized ovum and it takes about five days to succeed in the uterus from the fallopian tube.

Complete answer: Fertilization is the method during which haploid gametes fuse to create a diploid cell known as a Zygote. To confirm that every cell has the proper range of chromosomes, just one spermatozoon will fuse with one egg. There are various stages of human development mentioned below:
-Zygotic stage: The cell is created once the male germ cell (sperm) and feminine germ cell (egg) fuse.
-Blastocyst stage: The acellular cell begins to divide into a solid ball of cells. Then, it becomes a hollow ball of cells known as a blastula, attaching to the liner of the mother's female internal reproductive organ.

-Embryonic stage: The most important internal organs and external options begin to emerge, forming an associate embryo. During this stage, the heart, brain, and funiculus come into view. Arms and legs begin to develop.

-Fetal stage: Once the shaped options of the embryo begin to grow and develop, the organism is taken into account a craniate. Differentiation and specialization of structures happen throughout this point. The placenta on the other hand acts as a structural and functional unit between the embryo and the mother.
Hence, option D-Zygote is the correct answer.

Note: Human fertilization occurs or takes place in the fallopian tube. Many of us have this misconception that human fertilization happens in the vagina, however, this is often not the case. Once spermatozoa enter the canal, they will move through the cervix, into the uterus, and to the top of the fallopian tube. If a spermatozoon is in a position to penetrate the associated egg cell, fertilization happens.