Question:
Which of the following layer(s) is/are formed from the inner cell mass of the blastocyst?
Which of the following layer(s) is/are formed from the inner cell mass of the blastocyst?
Show Hint
Remember: ICM forms all three germ layers but not the trophoblast.
Updated On: Jan 2, 2026
- Ectoderm
- Endoderm
- Mesoderm
- Trophectoderm
Hide Solution
Verified By Collegedunia
The Correct Option is A, B, C
Solution and Explanation
The inner cell mass (ICM) of the blastocyst develops into the embryo proper and gives rise to all three primary germ layers.
These layers are:
- Ectoderm: forms skin, nervous system, etc.
- Endoderm: forms gut lining, liver, pancreas, etc.
- Mesoderm: forms muscles, bone, blood, etc.
Trophectoderm (option D) forms extraembryonic structures like the placenta and does not arise from the ICM.
These layers are:
- Ectoderm: forms skin, nervous system, etc.
- Endoderm: forms gut lining, liver, pancreas, etc.
- Mesoderm: forms muscles, bone, blood, etc.
Trophectoderm (option D) forms extraembryonic structures like the placenta and does not arise from the ICM.
Was this answer helpful?
0
0
Top Questions on Cell cycle and cell growth control
- A cultured skin fibroblast cell of a goat ‘P’ was fused with an enucleated ovum of a goat 'Q'. The resultant activated early embryo was then transplanted into a pseudopregnant (surrogate) female goat 'R' of the same strain as 'Q'. On completion of gestation, a female goat 'S' was born. With the exception of mitochondrial DNA, 'S' is a clone of
- GATE BT - 2024
- Genetics, Cellular and Molecular Biology
- Cell cycle and cell growth control
- Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle?
- GATE BT - 2024
- Genetics, Cellular and Molecular Biology
- Cell cycle and cell growth control
- The enzymes involved in ubiquitinylation of cell-cycle proteins are
- GATE BT - 2022
- Genetics, Cellular and Molecular Biology
- Cell cycle and cell growth control
- The size of the chromosome is measured during
- SRMJEEE - 2017
- Biology
- Cell cycle and cell growth control
- The total number of cells in a culture is counted using the trypan blue exclusion assay and is found to be 2.7 x 106 cells/ml. The culture is diluted 1:27 and then 100μl seeded per well into a 96 well plate. What is the final cell density per well?
- SRMJEEE - 2017
- Biology
- Cell cycle and cell growth control
View More Questions
Questions Asked in GATE BT exam
- Let \( A = \begin{pmatrix} 1 & 0 & 1 \\ 0 & k & 0 \\ 3 & 0 & -1 \end{pmatrix} \). If the eigenvalues of \( A \) are -2, 1, and 2, then the value of \( k \) is __________. (Answer in integer)
- GATE BT - 2025
- Eigenvalues
- For the coupled reactions given below: Glucose 6-phosphate + H\(_2\)O → Glucose + Pi (Reaction 1)
ATP + Glucose → ADP + Glucose 6-phosphate (Reaction 2) The standard free energy change of ATP hydrolysis at 25 °C is __ kJ/mol. The equilibrium constants for Reaction 1 and Reaction 2 are 360 and 800, respectively; Gas constant \( R = 8.314 \, {J mol}^{-1} {K}^{-1} \). (Round off to two decimal places)- GATE BT - 2025
- Biochemical Techniques
- An NMR spectrometer operating at proton resonance frequency \( \nu \) of 1 GHz will have a magnetic field strength of __________ Tesla (T). The gyromagnetic ratio for proton, \( \gamma = 2.675 \times 10^8 \, {T}^{-1} {s}^{-1} \). (Round off to one decimal place)
- GATE BT - 2025
- NMR and ESR spectroscopy
- Let \( a_0 = 0 \) and define \( a_n = \frac{1}{2} (1 + a_{n-1}) \) for all positive integers \( n \geq 1 \). The least value of \( n \) for which \( |1 - a_n|<\frac{1}{2^{10}} \) is ______.
- GATE BT - 2025
- Recurrence Relations
- Two fair six-sided dice, with sides numbered 1 to 6, are thrown once. The probability of getting 7 as the sum of the numbers on the top side of the dice is ________. (Round off to two decimal places)
- GATE BT - 2025
- Statistics and Probability
View More Questions