List of top Botany Questions asked in GATE XL

Which one of the following fungi produces aflatoxins
The mRNA of a hypothetical plant gene ( HSDU ) is 800-nucleotide long and encodes a protein of 160 amino acid residues. The calculated length of ( HSDU ) CDS would be ____ nucleotides (in integer).
In a genetic cross between two pure-line parents differing in the two independently segregating traits, plant height (tall vs dwarf) and flower color (purple vs white), all the F1 plants were tall with purple flowers. In a testcross population involving these F1 individuals, the expected percentage (%) of dwarf plants with purple flowers would be ______ (in integer).

Identify the CORRECT combination(s) between the enzymes in Group 1 and the reactions in Group 2 they catalyze. 
 

Identify the {CORRECT combination(s) of plant natural products and the categories they belong to.}
Which of the following combinations of plant diseases and the types of their causal organisms is/are {CORRECT?}

Match the types of ecological energy productivity in Group 1 with their respective definitions in Group 2. 
 

Match the types of ecological interactions in Group 1 with their respective definitions in Group 2. 
 

Match the plant products in Group 1 with the plant species in Group 2 that produce them and the respective plant parts in Group 3 where they accumulate the most. 
 

With reference to {Agrobacterium tumefaciens mediated plant transformation, match the virulence factors in Group 1 with their protein types in Group 2.} 
 

Match the inhibitors in Group 1 with their respective targets in Group 2. 
 

In wild-type Arabidopsis thaliana, the four types of floral organs (sepal, petal, stamen, carpel) are arranged in concentric whorls from outside to inside. With reference to the ABC model of floral organ patterning, match the homeotic mutants in Group 1 with their respective arrangements of organs in the four whorls given in Group 2.


 

In the Calvin-Benson cycle, to produce 1 molecule of glyceraldehyde 3-phosphate by fixing 3 molecules of carbon dioxide, 9 molecules of ATP and ____ molecules (in integer) of NADPH are typically utilized.
Which of the following statements is/are {CORRECT with reference to rubber production from plants?}
Which of the following selectable marker genes is/are used for herbicide tolerance during genetic transformation of plants?
Which of the following plant diseases is/are caused by nematode?
Which of the following plant natural products is/are cyanogenic glycosides?
Which of the following tissue types is/are established during embryogenesis in wild-type {Arabidopsis thaliana?}
Which one of the following plant families does apple ({Malus domestica}) belong to?
The collateral and open type of vascular bundle with endarch xylem strand is usually found in
The mRNA of a hypothetical plant gene HSDU is 800-nucleotide long and encodes a protein of 160 amino acid residues. The calculated length of HSDU CDS would be____ nucleotides (in integer).
Which one or more of the following statements is/are correct in the processing of pre-mRNA in eukaryotes?
Which one of the following metabolic intermediates is common to glycolysis, nucleotide synthesis and glycogen synthesis?
Which of the following is/are typical characteristic(s) of a fungal cell?
Which one of the following rooted tree topologies best describes the primate phylogeny?
rooted tree topologies