Question
Plant somatic embryogenesis is a process that forms :
The correct answer is
Bipolar structures having both shoot and root meristems
Plant Somatic Embryogenesis Solution
Understanding Somatic Embryogenesis
Plant somatic embryogenesis is a process where somatic (non-reproductive) cells develop into an embryo. This process mimics the natural development of an embryo from a zygote.
Key Characteristics of Somatic Embryos
Somatic embryos are characterized by their bipolar structure. This means they possess two distinct poles or ends:
- One pole develops into the shoot system (shoot apical meristem).
- The other pole develops into the root system (root apical meristem).
Therefore, a mature somatic embryo has the potential to grow into a whole plant, possessing both shoot and root meristems, similar to a zygotic embryo.
Analysis of Options
- Option 1 & 2: Incorrect. Somatic embryos are bipolar, not unipolar, and develop both shoot and root meristems, not just shoot meristems.
- Option 3: Correct. Somatic embryogenesis produces bipolar structures containing both shoot and root apical meristems, enabling complete plant development.
- Option 4: Incorrect. An amorphous mass of undifferentiated cells describes callus, which is the starting material for somatic embryogenesis but not the resulting embryo itself.
Conclusion: The process of plant somatic embryogenesis forms bipolar structures that contain both shoot and root meristems.
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Important Questions from Miscellaneous
- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
List-I List-II Electronic Configuration First Ionisation energy (kJ mol$^{-1}$) (A). ns$^2$ (I). 2100 (B). ns$^2$np$^1$ (II). 1400 (C). ns$^2$np$^3$ (III). 800 (D). ns$^2$np$^6$ (IV). 900
Choose the correct answer from the options given below: - The shielding constant of a 2p electron (calculated using Slater's rules) is
- Match List-I with List-II
List-I List-II Spectroscopy Property (A). Raman (I). Polarizability (B). FTIR (II). Dipole Moment (C). UV-Visible (III). Absorbance (D). NMR (IV). Spin
Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
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