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Which of the following event does not occur after implantation?
(a) Appearance of germinal layers
(b) Formation of chorionic villi
(c) Secretion of HCG
(d) Formation of trophoblast and inner cell mass
(a) Appearance of germinal layers
(b) Formation of chorionic villi
(c) Secretion of HCG
(d) Formation of trophoblast and inner cell mass
- a)a, d
- b)c,d,
- c)d only
- d)c and d
Correct answer is option 'C'. Can you explain this answer?
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Which of the following event does not occur after implantation?(a) App...
- The blastomeres in the blastocyst are arranged into an outer layer called trophoblast and an inner group of cells attached to trophoblast called the inner cell mass.
- The trophoblast layer then gets attached to the endometrium and the inner cell mass gets differentiated as the embryo.
- This is called implantation and it leads to pregnancy.
- After implantation, finger like projections appear on the trophoblast called chorionic villi which are surrounded by the uterine tissue and maternal blood.
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Which of the following event does not occur after implantation?(a) App...
Formation of Chorionic Villi
After implantation, various events take place in the development of the embryo. The formation of chorionic villi does not occur after implantation.
Events that occur after implantation:
- Appearance of germinal layers: After implantation, the germinal layers (ectoderm, mesoderm, and endoderm) start to form. These layers give rise to the different tissues and organs of the developing embryo.
- Formation of trophoblast and inner cell mass: Following implantation, the trophoblast and inner cell mass are formed. The trophoblast will give rise to the placenta, while the inner cell mass will develop into the embryo itself.
- Secretion of HCG: After implantation, the trophoblast cells start secreting human chorionic gonadotropin (HCG). This hormone helps in maintaining the corpus luteum, which in turn supports the pregnancy.
Therefore, the correct answer is option 'C', as the formation of chorionic villi does not occur after implantation.
After implantation, various events take place in the development of the embryo. The formation of chorionic villi does not occur after implantation.
Events that occur after implantation:
- Appearance of germinal layers: After implantation, the germinal layers (ectoderm, mesoderm, and endoderm) start to form. These layers give rise to the different tissues and organs of the developing embryo.
- Formation of trophoblast and inner cell mass: Following implantation, the trophoblast and inner cell mass are formed. The trophoblast will give rise to the placenta, while the inner cell mass will develop into the embryo itself.
- Secretion of HCG: After implantation, the trophoblast cells start secreting human chorionic gonadotropin (HCG). This hormone helps in maintaining the corpus luteum, which in turn supports the pregnancy.
Therefore, the correct answer is option 'C', as the formation of chorionic villi does not occur after implantation.
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Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer?
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Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer?.
Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following event does not occur after implantation?(a) Appearance of germinal layers(b) Formation of chorionic villi(c) Secretion of HCG(d) Formation of trophoblast and inner cell massa)a, db)c,d,c)d onlyd)c and dCorrect answer is option 'C'. Can you explain this answer?.
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