The Question is from neet-botany sexual-reproduction-in-flowering-plants , and it was created by the author Mr. NARESH KUMAR K

Question

In a rare genetic mutation in a dicot plant, the formation of the hypophysis is inhibited. What would be the MOST likely direct consequence of this mutation?

Mr. NARESH KUMAR K · Accepted Answer

## CORE INFORMATION
✓ **Answer**: B
## CONCEPT FRAMEWORK
 **Primary Concept**: Plant embryogenesis and the role of the hypophysis
 **Related Topics**: Dicot development, root development, apical-basal patterning in plants
 **Prerequisites**: Understanding of basic plant anatomy, particularly the embryo and its parts.
## SOLUTION PATHWAY
**Given Information**:
  A dicot plant has a mutation inhibiting hypophysis formation.
  The hypophysis is a crucial part of the plant embryo.
**Method & Steps**:
 1. Identify the role of the hypophysis.
  Reasoning: The hypophysis is the precursor to the root apical meristem (RAM) in plant embryos.  The RAM is essential for root development.
  Formula/Rule:  N/A
 2. Deduce the consequence of inhibiting hypophysis formation.
  Working: If the hypophysis fails to form, the RAM will not develop properly or at all. This directly impacts radicle (embryonic root) development.
  Key Point: The hypophysis is specifically involved in root development, not endosperm, cotyledons, or fruit ripening.
 3. Determine the most likely direct consequence.
  Result: Impaired radicle development is the most direct and immediate consequence of hypophysis inhibition.
  Verification:  The other options are indirect or unrelated to the hypophysis's primary role.
 ## OPTION ANALYSIS
A :x: Failure of endosperm development is related to the fertilized egg and other parts of the seed, not the hypophysis.
B ✓: Impaired radicle development is the correct answer as the hypophysis gives rise to the root apical meristem, which is essential for radicle growth.
C :x: Absence of cotyledons is related to problems in the embryo's cotyledon development, not the hypophysis.
D :x: Delayed fruit ripening is a much later developmental stage and unrelated to the hypophysis's role in embryogenesis.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing the hypophysis with other embryonic structures: Understanding the specific role of the hypophysis is crucial to avoid this.
  2.Focusing on indirect consequences: The question asks for the MOST likely DIRECT consequence.
 **Quick Tips**:
  1.Remember that the hypophysis is the precursor to the root apical meristem.
  2.Visualize the plant embryo and the location and role of the hypophysis.

Mr. NARESH KUMAR K · Answer

Failure of endosperm development

Mr. NARESH KUMAR K · Answer

The correct Option is "Impaired radicle development"

Mr. NARESH KUMAR K · Answer

Absence of cotyledons

Mr. NARESH KUMAR K · Answer

Delayed fruit ripening

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