Identify a pair of the following plants which show modification of axillary buds into tendrils and hooks respectivelyI. HugoniaII. DurantaIII. PassifloraIV. DioscoreaThe correct pair is

1.  I, II

2.  II, III

3.  III, I

4.  IV, I

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4
Correct Answer :

III, I


Explanation :
No Explanation available for this question

Study the following table I False whorl like inflorescence Many sessile bisexual flowers leonotis II Single flower like inflorescence Many stalked staminate and pistil late flowers poinsettia III Fruit- like inflorescence Many sessile staminate flowers on the top and pistil late flowers at the base and sterile flowers in between ficus IV Fleshy axis of inflorescence Many stalked staminate flowers at the base and pistil late flowers on the top and sterile flowers in between colacacia The correct pair is

1.  I, III

2.  I, IV

3.  II, III

4.  II, IV

View Answer  
4
Correct Answer :

I, III


Explanation :
No Explanation available for this question

In the flowers of a plant, the ovarian part is fused, but styles and stigmas are free. Its ovary becomes unilocular due to breakdown of partition wall and the ovules are attached to a central axis. Identify the plant

1.  Dianthus

2.  Abutilon

3.  Nymphaca

4.  Michelia

View Answer  
4
Correct Answer :

Dianthus


Explanation :
No Explanation available for this question

Arrange the following fruits in descending order based on the number of locules in the ovary from which it develops;I. CarcerulusII.SchizocarpIII. CremocarpIV. RegmaThe correct sequence is

1.  II, I, IV, III

2.  I, IV, III, II

3.  II, IV, III, I

4.  II, III, I, IV

View Answer  
4
Correct Answer :

II, I, IV, III


Explanation :
No Explanation available for this question

Identify the characters with reference to the plant in which eight nucleated embryo sac was first studied by StrasburgerI. Micropyle, Chalaza and funiculus are arranged in the same vertical line in the ovuleII. Presence of both unisexual and bisexual flowers in the same plantIII. Filiform apparatus helps in conduction of food materials from endosperm to egg apparatusIV. Long funiculus coils like a watch spring around the ovulueIdentify the correct pair

1.  I, IV

2.  II, III

3.  I, II

4.  III, IV

View Answer  
4
Correct Answer :

I, II


Explanation :
No Explanation available for this question

From the following identify the two correct statements with reference to meiosisI. Bead like structure are absent on chromosomesII. Displacement of chiasmata occurs in diakinesisIII. Separation of two basic sets of chromosomesIV. No division of centromereThe correct statements are

1.  II, III

2.  II, IV

3.  III, IV

4.  I, III

View Answer  
4
Correct Answer :

II, III


Explanation :
No Explanation available for this question

In a DNA segment having six coils, there are 22 nitrogen base pairs linked by two hydrogen bonds. How many cytosine bases are found in that segment

1.  22

2.  38

3.  44

4.  76

View Answer  
4
Correct Answer :

38


Explanation :
No Explanation available for this question

G.H. Shull observed inbreeding depression in a plant. Miller and Letham isolated a hormone from the immature seeds of that plant. Which of the following character is NOT associated with that plant

1.  Atactastelic condition in stem

2.  Bundle sheath in leaf

3.  Chromosomal number of endospermous cell is 30

4.  Medulla absent in the root

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4
Correct Answer :

Medulla absent in the root


Explanation :
No Explanation available for this question

The tracheophyte characterized by habitual heterophylly, absence companion cells in phloem and presence of vessels in the xylem is

1.  Drimys

2.  Pteris

3.  Selaginella

4.  Gnetum

View Answer  
4
Correct Answer :

Selaginella


Explanation :
No Explanation available for this question

Study the following related to used plants and identify the correct match the sorghum and cotton respectivelyI. Blood purification and organs fertilizerII. Animal feed and paper industryIII. 'B' Vitamin and cosmeticsIV. Explosives and orgapic fertilizerThe correct pair is

1.  I, II

2.  II, III

3.  III, IV

4.  II, IV

View Answer  
4
Correct Answer :

II, IV


Explanation :
No Explanation available for this question
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