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प्रश्न
Answer in one sentence.
Give two differences between blastula and gastrula.
Difference between blastulation and gastrulation.
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उत्तर
| Blastula | Gastrula | ||
| 1. | It is formed during the early mitotic division through the process of blastulation. | 1. | It is formed at a later stage through the process of gastrulation. |
| 2. | Blastula is formed from morula. | 2. | Gastrula is formed blastula. |
| 3. | It is formed through rapid mitotic divisions. | 3. | It is formed by slower mitotic divisions. |
| 4. | The cells do not move during the formation of the blastula. | 4. | The cells move through morphogenetic movement during the formation of the gastrula. |
| 5. | Germinal layers absent. | 5. | The formation of three germinal layers occurs. |
| 6. | Cells are undifferentiated. | 6. | Cells undergo differentiation |
Notes
Students should refer to the answer according to the question.
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संबंधित प्रश्न
The trophoblast cells in contact with embryonal knob are called ___________.
Explain the process of early cleavage till the formation of morula.
Describe the changes involved during gastrulation.
Describe the structure of blastula.
Attachment of embryo to the wall of the uterus is known as ______.
Answer in one sentence.
What is the difference between embryo and zygote?
Write an account of cleavage during embryonic development in humans.
Pregnant mother supplies nourishment to her foetus through ___________.
______ develops from endoderm.
After cleavage zygote first forms ____________.
How many hours after fertilization does first cleavage occur?
Identify the correct order of embryonic development.
Identify the trophoblast cells which are in contact with the embryonal knob during blastulation.
Mention the names of any two organs each derived from ectoderm and mesoderm.
Secondary sexual characters in females develop in response to hormone ______.
Name the germinal layer from which nervous system is derived.
Define cleavage.
