List of top Botany Questions

Sclerenchyma tissue is present in this portion of this structure
Assertion (A): Secondary growth is absent in monocots generally.
Reason (R): Vascular bundles are conjoint and closed.
Identify the correct statement regarding plant tissues
Number of chromosomes in maize root cells at G1 phase, after S and M phases respectively

Match the following

Match the following

Choose the correct statement:
I. Primary cell wall is capable of growth in mature plant cell  
II. Middle lamella is first formed layer of cell wall and it is the outermost layer in mature plant cell  
III. Addition of lignin into cellulose interfibrillar spaces leads to the formation of secondary cell in mature plant cell

Choose the correct combinations based on their Taxonomical features

Choose the correct statements related to plant reproduction
I. In Cladophora, male and female gametes are morphologically similar
II. Male and female gametes of Pteris are heterogametes
III. Fungi are usually homothallic and unisexual
IV. Monoecious plants are bisexual

Assertion [A]: Scale leaves of rhizome of ginger are vegetative propagules.
Reason [R]: Vegetative propagules of flowering plants are capable of giving new offsprings.

Match the following list

Stem tubes, Corn, Rhizome, Cladophyll, Bulbil, Stolon modifications shown by this correct sequence of plants
Pyriform gametes with two laterally attached flagella are found in

Identify wrong matching

Name the plant and body showing Cup or saucer shaped ascocarp
Taxonomic keys are based on
In which of the following organisms, cell wall is not found in any stage?

Match the following:


 

Assertion (A): By mutations genetic variations are created resulting in a new trait not found in the parental type.
Reason (R): Plants having desirable characters will be selected after inducing mutations with chemicals or radiation.
Identify the correct pair of variety crop developed for resistance to the disease:
Bacteria used to produce human insulin chains is:
Identify the wrong statement from the following:

Arrange the following in correct order in polymerase chain reaction cycle: 
I Deannealing
II Denaturation
III Extension
IV Annealing 
 

Assertion (A): Primers are used in polymerase chain reaction technique. Reason (R): Primers is used for the addition of new DNA nucleotides.

Identify A and B in the diagram given below: