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What is the developing structure called when the zygote begins dividing repeatedly to form a ball of cells and later differentiates into tissues and organs?
- a)Zygote
- b)Embryo
- c)Foetus
- d)Gamete
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
What is the developing structure called when the zygote begins dividin...
The zygote divides repeatedly to give rise to a ball of cells. The cells then begin to form groups that develop into different tissues and organs of the body. This developing structure is termed an embryo
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What is the developing structure called when the zygote begins dividin...
Understanding the Developing Structure: Embryo
When a zygote forms after the fertilization of an egg by a sperm, it initiates a crucial developmental journey that leads to the formation of an organism. This journey can be detailed as follows:
1. Formation of the Zygote
- A zygote is the initial cell formed when a sperm fertilizes an egg.
- It contains genetic material from both parents, establishing the foundation for the new organism.
2. Cell Division and Development
- After fertilization, the zygote undergoes rapid cell division, a process known as cleavage.
- This results in a ball of cells called a morula, which eventually develops into a blastocyst.
3. Differentiation into Tissues and Organs
- As the blastocyst implants into the uterine wall, it begins to differentiate.
- Cells start to specialize into different types, leading to the formation of tissues and organs.
- This stage is crucial for establishing the body plan and functions of the future organism.
4. Definition of an Embryo
- The term "embryo" refers to the developing structure from the time of implantation until the end of the eighth week of pregnancy.
- During this period, major organs and systems are formed, laying the groundwork for further development.
Conclusion
In summary, the correct answer is option 'B'—Embryo. This term encompasses the critical stages of development following the zygote's formation, highlighting the transition from a single cell to a complex organism through cell division and differentiation. Understanding this process is essential for grasping the fundamentals of biology and human development.
When a zygote forms after the fertilization of an egg by a sperm, it initiates a crucial developmental journey that leads to the formation of an organism. This journey can be detailed as follows:
1. Formation of the Zygote
- A zygote is the initial cell formed when a sperm fertilizes an egg.
- It contains genetic material from both parents, establishing the foundation for the new organism.
2. Cell Division and Development
- After fertilization, the zygote undergoes rapid cell division, a process known as cleavage.
- This results in a ball of cells called a morula, which eventually develops into a blastocyst.
3. Differentiation into Tissues and Organs
- As the blastocyst implants into the uterine wall, it begins to differentiate.
- Cells start to specialize into different types, leading to the formation of tissues and organs.
- This stage is crucial for establishing the body plan and functions of the future organism.
4. Definition of an Embryo
- The term "embryo" refers to the developing structure from the time of implantation until the end of the eighth week of pregnancy.
- During this period, major organs and systems are formed, laying the groundwork for further development.
Conclusion
In summary, the correct answer is option 'B'—Embryo. This term encompasses the critical stages of development following the zygote's formation, highlighting the transition from a single cell to a complex organism through cell division and differentiation. Understanding this process is essential for grasping the fundamentals of biology and human development.
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