List of top Botany Questions

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A) Pollen fixed in Formalin : Acetic acid Alcohol can be used to ascertain fertility but not the viability. 
Reasons (R): Pollen fertility refers to the ability of a plant to produce fertile pollen grains, where as the viability refers to the ability to germinate and produce a pollen tube. 
In the light of the above Statements, choose the most appropriate answer from the options given below:

Match List I with List II

	List I-(Scientific Names )		List II-(Common Names)
A	Eugenia caryophyllus	I	Nutmeg
B	Elettaria cardamomum	II	Clove
C	Myristica fragrans	III	Cardamom
D	Carcum carvi	IV	Caraway seed

Choose the correct answer from the options given below: 

Drug 'quinine' used for treatment of malaria is obtained from

Given below are two statements:
Statement I: Rauvolfia serpentina was used by native indians for snake-bite and as tranquilizer for the treatment of mental disorders. 
Statement II: Taxol is a drug obtained from plant Taxus brevifolia which is used for treatment of leprosy. 
In the light of the above Statements, choose the most appropriate answer from the options given below: 

Nuclear pores present on nuclear envelope are enclosed by a circular structure called as

Match List I with List II

	List I-(Suffix)		List II-(Group Heirarchy)
A	-opsida	I	sub-class
B	-bionta	II	class
C	-inae	III	sub-tribe
D	-idae	IV	Kingdom

Choose the correct answer from the options given below: 

Mycorrhizal fungi helps in delivery of which key ions to the plant sytem?

Retort cells are present in

Companion cells which are located close to the sieve tube serve the same function as

Among the following pteridophytes, the initial steps in evolutionary trend of seed development can be best seen in

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Gnetum is closer to angiosperms than gymonsperms.
Reasons (R): There is complete elimination of archegonia in the female gametophyte of Gnetum. 
In the light of the above Statements, choose the most appropriate answer from the options given below:

Morchella esculenta, often found growing under trees in orchards, with an edible ascocarp, belongs to the class___.

The advanced characters exhibited by the members of basidiomycotina include:
(A) No specialized sex organ are formed 
(B) Several types of spore in the life-cycle 
(C) Spores are endogenous in nature 
(D) Formation of dikaryotic cells by clamp connection 
(E) Presence of dolipore septa 
Choose the most appropriate answer from the options given below

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R):
Assertion (A): Cotton and linen textiles have long durability due to cellulose's side- by-side aggregates which form molecular cables. 
Reasons (R): Durability of cellulose is due to a-(1-6) glycosidic bonds. 
In the light of the above Statements, choose the most appropriate answer from the options given below:

Glyphosate resembles phosphoenol pyruvate and inhibits the enzyme EPSP synthetase which synthesises____.

Many fungi have no known sexual stages in their life-cycle. Mycologists have traditionally grouped such fungi into

Covered smuts' disease in Barley is caused by

Ergotism, which is characterized by gangrene, nervous spasm, burning sensation, hallucinations and temporary 'insanity' is caused by

Rhodophyceae possesses the following unique characteristics
(A) The septa between the adjacent cells have 'pit connections' 
(B) The flagellated motile stages are totally absent 
(C) Red algae exhibit low degree of epiphytism and parasitism 
(D) They contain water soluble phycocyanin pigment 
(E) The accumulated photosynthetic product is floridean starch 
Choose the most appropriate answer from the options given below

Match List I with List II

	List I-(Fruiting body)		List II-(Sub-division/order)
A	Cleistothecium	I	Hemiascomycetes
B	Asci (naked)	II	Erysiphales
C	Apothecium	III	Pyrenomycetes
D	Perithecium	IV	Discomycetes

Choose the correct answer from the options given below: 

The time interval between the formation of successive leaf primordia is termed as

Transformation, a phenomenon responsible for recombination in microbes was discovered by

False branching of thallus is observed in

Heterocyst a thick-walled, pale-yellow, barrel-shaped structure found in blue-green algae, helps in

The influenza virus carry functional surface projections called spike which contains unique enzyme known as