Biology · Plant Developmental Biology
Given below are the different stages of Arabidopsis embryogenesis (Column X) and their characteristic patterns of cell division (Column Y): Column X: A. Zygotic B. Globular C. Heart D. Torpedo Column Y: (i) Formation of an 8-cell embryo, exhibiting radial symmetry and undergoing additional cell division to create the protoderm (ii) Polarized growth of cells followed by an asymmetric transverse division giving rise to a small apical cell and an elongated basal cell (iii) Cell elongation and cellular differentiation processes throughout the embryonic axis with visible distinction between the adaxial and abaxial tissue of the cotyledons (iv) Focused cell division forming two cotyledons, giving bilateral symmetry to the embryo Which one of the following options represents the correct match between Column X and Column Y?
- 1A-(i), B-(iv), C-(ii), D-(iii)
- 2A-(ii), B-(i), C-(iii), D-(iv)
- 3A-(ii), B-(i), C-(iv), D-(iii)✓
- 4A-(i), B-(ii), C-(iii), D-(iv)
Correct answer
A-(ii), B-(i), C-(iv), D-(iii)
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