Which of the following is false ?
I. Endosperm formation starts prior to first division of zygote
II. Angiospermic endosperm is mostly 3N while gymnospermic one is N.
III. The most common type of endosperm is nuclear.
IV. Coconut has both liquid nuclear (multinucleate) and cellular endosperm.
V. Milky water of green tender coconut is liquid female gametophyte.
Which of the following is false ?
I. Endosperm formation starts prior to first division of zygote
II. Angiospermic endosperm is mostly 3N while gymnospermic one is N.
III. The most common type of endosperm is nuclear.
IV. Coconut has both liquid nuclear (multinucleate) and cellular endosperm.
V. Milky water of green tender coconut is liquid female gametophyte.
I. Endosperm formation starts prior to first division of zygote
II. Angiospermic endosperm is mostly 3N while gymnospermic one is N.
III. The most common type of endosperm is nuclear.
IV. Coconut has both liquid nuclear (multinucleate) and cellular endosperm.
V. Milky water of green tender coconut is liquid female gametophyte.
A
I and II only
B
III only
C
V only
D
II only
Text Solution
AI Generated Solution
The correct Answer is:
To determine which of the statements is false, we will analyze each statement one by one:
1. **Statement I: Endosperm formation starts prior to the first division of the zygote.**
- This statement is **true**. Endosperm formation begins before the zygote undergoes its first division. The endosperm is formed to provide nourishment to the developing embryo.
2. **Statement II: Angiospermic endosperm is mostly 3N while gymnospermic one is N.**
- This statement is **true**. In angiosperms, the endosperm is triploid (3N) due to double fertilization, while in gymnosperms, it is typically haploid (N).
3. **Statement III: The most common type of endosperm is nuclear.**
- This statement is **true**. Nuclear endosperm is indeed the most common type found in about 60% of angiospermic plants.
4. **Statement IV: Coconut has both liquid nuclear (multinucleate) and cellular endosperm.**
- This statement is **true**. Coconuts contain both types of endosperm: the liquid endosperm is nuclear and multinucleate, while the solid part is cellular endosperm.
5. **Statement V: Milky water of green tender coconut is liquid female gametophyte.**
- This statement is **false**. The milky water in green tender coconut is actually the liquid endosperm, not the female gametophyte.
Based on the analysis, the false statement is **Statement V**.
### Final Answer:
The false statement is **V**: Milky water of green tender coconut is liquid female gametophyte.
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Similar Questions
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Read the following information carefully and answer the questions that follow : In a village of Bastar district in Madhya Pradesh, only two types of people live who belong to a tribal class. The first type is known as class A, while the other is known as class B. In that village, there is no other type of person except these two. The activities of both types of people are governed by perfectly patterned norms of social behaviour. Each person of the tribe has to obey the norms. They are rigid about this. As far as marriage is concerned, the following norms are to be followed : (i) The people of class A cannot marry any other member of their own class, though they can marry member: of class B. (ii) After being married, each male member ceases to be a member of that class in which he was born by automatically, he becomes the member of the other class to which his wife belongs. (iii) As far as females are concerned, they remain the members of their own class after being married. (iv) On his birth, the child automatically becomes the member of his mother's class. (v) When any male member becomes widower or divorcee, then he again belongs to the group in which he was born (vi) Nobody can marry more than one person according to social laws. Which of the following marriages is not permissible according to the social laws ?
The electronic displacements in covalent bonds may occur either in the ground state under the influence of an atom or a substituent group or in presence of an appropriate attacking reagent. As a result of these electron displacements, centres of different electron densities are created and these centres are susceptible to attack by the reagents. These electron displacements occur through inductive electromeric, resonance and hyperconjugation effects. Whereas inductive effect involves displacement of sigam -electrons towards the substituent, resonance effect involves delocalization of pi- electrons transmitted through the chain and both are permanent effect. Electromeric effect is the complete transfer of a shared pair of pi - electrons to one of the atoms joined by a multiple bond on the demand of an attacking reagent. Hyperconjugation effects on the other hand involve delocalization of sigma -electrons of C-H bond of an alkyl group directly attached to an atom of unsaturated system (i.e., sigma-pi -conjugation). Both inductive and hyperconjugation effects can be used to explain the stability of carbocations and free radicals which follow the stability order : 3^(@)gt2^(@)gt1^(@) . The stability or carbanions, however, follows the reverse order. An organic reaction occurs through making and breaking of bonds. The breaking of a covalent bond may occur either homolytic leading to the formation of free radicals or heterolytic forming positively (carbocations) or negatively (carbanions) charged species. Most of the attacking reagents carry either a positive or a negative charge. The positively charged species with electron deficient centre or neutral species (free radicals, carbenes, nitrene) are collectively called electrophiles, while negatively charged species with electron rich centre or neutral species (like water, alcohol, ammonia, etc.) are called nucleophiles. Consider the following alkenes and what is correct decreasing order of stability? {:(underset("(I)")underset("But-1-ene")(CH_(3)CH_(2)CH=CH_(2))", "underset("(II)")underset("2,3-Dimethylbut-2-ene")((CH_(3))_(2)C=(CH_(3))_(2))","),(underset("(III)")underset("2-Methylbut-2-ene")((CH_(3))_(2)C=CHCH_(3))", "underset("(IV)")underset("2-Methylpropene")((CH_(3))_(2)C=CH_(3))):}
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