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
- The sum of the following infinite series is: \[ 1 + \frac{1}{1!} + \frac{1}{2!} + \frac{1}{3!} + \frac{1}{4!} + \frac{1}{5!} + \dots \]
- GATE CH - 2025
- GATE BT - 2025
- GATE GG - 2025
- Sequence and Series
- A thin wire is used to construct all the edges of a cube of 1 m side by bending, cutting, and soldering the wire. If the wire is 12 m long, what is the minimum number of cuts required to construct the wire frame to form the cube?
The figures I, II, and III are parts of a sequence. Which one of the following options comes next in the sequence at IV?
- GATE CH - 2025
- GATE BT - 2025
- GATE GG - 2025
- Sequence and Series
A color model is shown in the figure with color codes: Yellow (Y), Magenta (M), Cyan (Cy), Red (R), Blue (Bl), Green (G), and Black (K). Which one of the following options displays the color codes that are consistent with the color model?
- Rohit goes to a restaurant for lunch at about 1 PM. When he enters the restaurant, he notices that the hour and minute hands on the wall clock are exactly coinciding. After about an hour, when he leaves the restaurant, he notices that the clock hands are again exactly coinciding. How much time (in minutes) did Rohit spend at the restaurant?
View More Questions