Amino acids, as the name suggests, have both an amino group and a carboxyl group in their structure. In addition, all naturally occurring amino acids are called L- amino acids. From this, can you guess from which composed can the simplest amino acid be made

1.  Formic acid

2.  Methane

3.  Phenol

4.  Glycine

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4
Correct Answer :

Methane


Explanation :
No Explanation available for this question

Tapetum is

1.  Partial in origin

2.  Innermost wall layer of pollen sac

3.  Nutritive and provides wall material to pollen grains

4.  All the above

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Correct Answer :

All the above


Explanation :
No Explanation available for this question

Many organic substance are negatively charged. Acetic acid, while others are positively charged . Ammonium ion. An amino acid under certain conditions would have both positive and negative charges simultaneously in the same molecules. Such a form of amino acid is called:

1.  Positively charged form

2.  Negatively charged form

3.  Neutral form

4.  Zwitterionic form

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4
Correct Answer :

Zwitterionic form


Explanation :
No Explanation available for this question

In an anther, stomium occurs

1.  At the tip

2.  In grooves of each anther lobe

3.  At the base of anther

4.   Transversely on the anther

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4
Correct Answer :

At the base of anther


Explanation :
No Explanation available for this question

Ubisch bodies take part in the development of

1.  Pollen grains

2.  Syncytium

3.  Microgametophyte

4.  Microsporangium

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4
Correct Answer :

Pollen grains


Explanation :
No Explanation available for this question

Sugars are technically called carbohydrates, referring to the fact that their formulae are only multiple of Cn (H2o)n. Hexoses therefore have six carbons. Twelve hydrogens and six oxygen atoms. Glucose is a hexose. Choose vfrom among the following another hexose:

1.  Fructose

2.  Erythrose

3.  Ribulose

4.  Ribose

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4
Correct Answer :

Fructose


Explanation :
No Explanation available for this question

Middle layers of the microsporangial wall

1.  Shrivel at maturity of anther

2.  Persist but remain thin-walled

3.  Degenerate before maturity

4.   Persist and become thickened

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4
Correct Answer :

Degenerate before maturity


Explanation :
No Explanation available for this question

In monocots, the most common pollen tetrad is

1.  Isobilateral

2.  Tetrahedral

3.  Linear

4.  T-shaped or decussate

5.  

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5
Correct Answer :

Isobilateral


Explanation :
No Explanation available for this question

Tapetal cell shows

1.  Meiosis

2.  Mitosis

3.  Endomitosis

4.  Endomitosis and endopolyploidy

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4
Correct Answer :

Endomitosis and endopolyploidy


Explanation :
No Explanation available for this question

When you like take cells or tissue pieces and grind then with an acid in a mortar and pestle, all the small biomolecules dissolve in the acid. Proteins , polysaccharides and nucleic acids are insoluble in mineral acid and get precipitated. The acid soluble compounds include amino acids. Nucleosides small sugars etc. When one adds a phosphate group to a nucleoside one gets another acid soluble biomolecule called:

1.  Nitrogen base

2.  Adenine

3.  Sugar phosphate

4.  Nucleotide

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4
Correct Answer :

Nucleotide


Explanation :
No Explanation available for this question
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