Which one of the following in Spirogyra is different based on its nucleus

1.  Zygospore

2.  Azygospore

3.  Aplanospore

4.  Akinete

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4
Correct Answer :

Zygospore


Explanation :
No Explanation available for this question

Assertion (A): The life cycle in Funaria is called diplohaplonticReason (R): In Funaria, there is alternation of haploid gametophytic and diploid sporophytic Phases, one becoming parent to the otherThe correct answer is

1.  Both A and R are true and R is the correct explanation of A

2.  Both A and R are true but R is not the correct explanation of A

3.  A is true but R is false

4.  A is false but R is true

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4
Correct Answer :

A is false but R is true


Explanation :
No Explanation available for this question

Assign the following substances to the cell wall, flagella,'s' layer and pili of bacteria in correct sequenceI. GlycoproteinII.FimbrilinIII.Teichoic acidIV. FlagellinThe correct sequence is

1.  III, I, IV, II

2.  III, IV, I, II

3.  II, IV, III, I

4.  III, IV, II, I

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4
Correct Answer :

III, IV, I, II


Explanation :
No Explanation available for this question

Identify the fungus which produces chlamydospores from dikaryotic mycelium

1.  Sphecelotheca sorghi

2.  Rhizopus stolonifer

3.  Pyricularia oryzae

4.  Colletotrichum falcatum

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4
Correct Answer :

Sphecelotheca sorghi


Explanation :
No Explanation available for this question

Identify three of the following plants which exhibit the physiological process described as 'Necessary Evil'I. PotamogetonII SagittariaIII. LimnophilaIV. NymphacaThe correct match is

1.  I, II, III

2.  II, III, IV

3.  I, II, IV

4.  I, III, IV

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4
Correct Answer :

II, III, IV


Explanation :
No Explanation available for this question

Study the following table I Peperomia Leaf succulent Leaf epidermal cells store water II Calotropis Non-succulent Root cells with thickened cell walls III Tribulus Ephemeral Stem stores water IV Ammophila Dict plant rolling in of leaves to check water loss Identify the correct pair of answers

1.  I, II

2.  I, III

3.  II, III

4.  II, IV

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4
Correct Answer :

I, II


Explanation :
No Explanation available for this question

Assertion (A): Citrullus vulgaris is produced from a cross between 4n male and 2n Female PlantsReason (R): These triploid sterile plants do not bear seedsThe correct answer is

1.  Both A and R are true and R is the correct explanation of A

2.  Both A and R are true, but R is not the correct explanation of A

3.  A is true, but R is false

4.  A is false, but R is true

View Answer  
4
Correct Answer :

A is false, but R is true


Explanation :
No Explanation available for this question

Study the following table showing the components of water potential in closely arranged mesophyll cells namely A, Band C Cell Osmotic potential (Mpa) Pressure potential (Mpa) A -0.21 0.05 B -0.22 0.02 C -0.23 0.05 Identify two of the following which show correct direction of water movement between two cellsI. A → BII.B → CIII. C → AIV. C → BThe correct pair is

1.  I, II

2.  II, III

3.  I, IV

4.  II, IV

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4
Correct Answer :

I, IV


Explanation :
No Explanation available for this question

In photoactive plants, during day time the following ionic flux of guard cell is directly involves the expenditure of energy

1.  Outward movement of malate

2.  Inward movement of potassium ions

3.  Outward movement of protons

4.  Inward movement of chloride

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4
Correct Answer :

Outward movement of protons


Explanation :
No Explanation available for this question

Assertion (A): Salt resistant plants survive in saline habitats by maintaining low internal Na1 levelsReason (R): Salt resistant plants get rid off excess Na- by ATP energized anti porterThe correct answer is

1.  Both A and R are true and R is the correct explanation of A

2.  Both A and R are true, but R is not the correct explanation of A

3.  A is true, but R is false

4.  A is false, but R is true

View Answer  
4
Correct Answer :

A is true, but R is false


Explanation :
No Explanation available for this question
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