Assertion A: The characteristic feature of the endosperm haustoria is that they are developed from the cellular endosperm only
Reason R: The endosperm haustoria are formed at the micropylar or chalazal or at both the ends and penetrate the nucellar tissue to absorb nutrition.
In the light of the above statements, choose the most appropriate answer from the options given below
Assertion A Analysis: Endosperm Haustoria Development
Assertion A states that endosperm haustoria develop exclusively from the cellular endosperm.
Endosperm haustoria are specialized structures that facilitate nutrient uptake. However, the development is not strictly limited to originating solely from the cellular endosperm in all plant species. The precise origin and timing can vary. Therefore, the assertion that they develop only from the cellular endosperm is factually incorrect.
Reason R Analysis: Haustoria Formation and Function
Reason R describes endosperm haustoria as formations at the micropylar or chalazal ends (or both), which penetrate nucellar tissue to absorb nutrition.
- Location: Typically found at the polar ends of the endosperm.
- Action: They grow into and amongst the maternal tissues.
- Function: Primary role is absorption of nutrients necessary for embryo development.
This description accurately captures the characteristic features and primary role of endosperm haustoria. Thus, Reason R is correct.
Conclusion
Based on the analysis, Assertion A is incorrect and Reason R is correct.
Similar Questions
- Match the LIST-I with LIST-II
LIST-I Complex LIST-II Metal A. Haemoglobin I. Co B. Chlorophyll II. Fe C. Vitamin B$_{12}$ III. Pt D. Cis platin IV. Mg
Choose the correct answer from the options given below: - Non-stoichiometric KCl exhibits a blue lilac colour because of -
- Match the LIST-I with LIST-II
LIST-I Ligand LIST-II denticity A. Pyridine I. 3 B. DMG II. 6 C. EDTA III. 2 D. Dien IV. 1
Choose the correct answer from the options given below: - When alkali metal are dissolved in liquid ammonia the blue colour of solution is due to
- Which of the following is the cause of photochemical smog?
- Environmentalist use which of following compound as bleaching agent
- Which of the following group attached to benzene act as meta directing group
- Most stable conformation of n-butane
- Which of the following reaction intermediate can not show sp$^2$ hybridisation
- Cleavage polyembryony is fairly common in
Important Questions from Mixed Topic (CUET PG)
- Who was the founder of Bolshevik Communist party?
- What is the key guide to statecraft in the realist tradition?
- Chronologically arrange the events in the Cold War period.
A. Berlin Wall is constructed
B. Communist China joins the UN
C. Soviet invasion of Czechoslovakia
D. Berlin Blockade
Choose the correct answer from the options given below: Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?
