Foetal development

Which of the following formed after fertilization?

• cortical granules

• haploid secondary oocyte

• haploid sperm

• diploid zygote

Embryogenesis takes place during

• first 2 weeks after fertilization

• first 4 weeks after fertilization

• first 8 week after fertilization

• first 12 week after fertilization

Which of the following is CORRECT regarding foetal development stages?

• Zygote, cleavage, gastrulation, organogenesis, neurulation.

• Zygote, cleavage, gastrulation, neurulation, organogenesis.

• Zygote, cleavage, neurulation, gastrulation organogenesis.

• Zygote, cleavage, organogenesis, gastrulation, neurulation.

Zygote undergoes its first_________ about 24 hours after fertilization.

• mitotic division

• meiotic division

• binary fission

• nuclear division

The cell that is make up the embryo known as

• blastocoel

• blastophore

• blastomere

• blastocyst

The 32-cells stage of the embryo is a solid ball of blastomeres called

• morula

• blastocyst

• blastocoel

• trophoblast

The blastocyst has inner mass, blastocoel and_______.

• trophoblast

• blastula

• morula

• gastrula

What is the meaning of gastrulation?

• a process by which the morula develop into blastocyst.

• a process by which the blastocyst produce the organs of the body.

• a process by which the three germ layers form various organs.

• a process by which the blastocyst become three germ layers.

The neurulation refers to

• the early stage in the formation of brain and notochord in vertebrates.

• the early stage in the formation of brain and spinal cord in vertebrates.

• the formation of notochord.

• the early stage in the formation of spinal cord and hollow dorsal nerve cord.

Human muscle tissue is made up of

• ectoderm

• mesoderm

• endoderm

• germ layer