Which development sequence is correct?

Which development sequence is correct?

(A) Correct sequence in development is Fertilization → Zygote → Cleavage → Morula → Blastula → Gastrula.

Does development begin with fertilization?

“Human development begins after the union of male and female gametes or germ cells during a process known as fertilization (conception).

What is the correct order of the developing baby?

A baby goes through several stages of development, beginning as a fertilized egg. The egg develops into a blastocyst, an embryo, then a fetus.

What is the correct developmental sequence of animal development?

Early animal development progresses through distinct stages: first the production of the zygote through fertilization, then cleavage, then the formation of the gastrula, and then the formation of the blastula.

What is the correct sequence of development stages after fertilization?

Hence the correct answer is ‘C’ i.e, Zygote-morula-blastula-gastrula-embryo. Note:All cleavage divisions are mitotic and resultant daughter cells are blastomeres.

Which of the following is correct sequence in human embryo development?


What is fertilization discuss the sequence of events during fertilization in vertebrates?

The stages of fertilization can be divided into four processes: 1) sperm preparation, 2) sperm-egg recognition and binding, 3) sperm-egg fusion and 4) fusion of sperm and egg pronuclei and activation of the zygote.

What is the first sequence of events that occurs during pregnancy?

The process of prenatal development occurs in three main stages. The first two weeks after conception are known as the germinal stage, the third through the eighth week is known as the embryonic period, and the time from the ninth week until birth is known as the fetal period.

What are the three stages of prenatal development?

This union marks the beginning of the prenatal period, which in humans encompasses three distinct stages: (1) the pre-embryonic stage, the first two weeks of development, which is a period of cell division and initial differentiation (cell maturation), (2) the embryonic period, or period of organogenesis, which lasts …

What are the steps of fertilization?

In overview, fertilization can be described as the following steps:

  • Sperm Capacitation.
  • Sperm-Zona Pellucida Binding.
  • The Acrosome Reaction.
  • Penetration of the Zona Pellucida.
  • Sperm-Oocyte Binding.
  • Egg Activation and the Cortical Reaction.
  • The Zona Reaction.
  • Post-fertilization Events.

What is fertilization animal development?

Fertilization: the process of a single sperm cell combining with single egg cell to form a zygote. Gastrulation: the dramatic rearrangement (movement) of cells in the blastula to create the embryonic tissue layers. These tissue layers will go on to produce the tissues and organs of the adult animal.

Which is the correct sequence of development of an embryo?

Fertilization → Zygote → Cleavage → Morula → Blastula → Gastrula Embryogenesis is the process by which the development of embryo takes place. It starts with the fertilization by the fusion of two reproductive gametes to form zygote and zygote undergoes cleavage and follows morula, blastula and gastrula stages for further development.

What are the different stages of fetus development?

Stages of Development of the Fetus. A baby goes through several stages of development, beginning as a fertilized egg. The egg develops into a blastocyst, an embryo, then a fetus.

Where does the fertilization of a baby take place?

The baby’s circulation and blood flow through the heart now function like an adult’s. • Fertilization involves the union of the sperm and egg cells in the fallopian tubes. • After fertilization, cell division starts to form the developing embryo in stages, including the morula and then the blastula.

What happens to the sperm and egg during fertilization?

The early stages of embryonic development begin with fertilization. Fertilization is the process in which haploid gametes (sperm and ovum) fuse to form a diploid cell called a zygote. To ensure that each zygote has the correct number of chromosomes, only one sperm can fuse with one egg.