List of top Botany Questions

Which of the following bacteria belong to the coliform group ?
A. Escherichia coli
B. Streptococcus faecalis
C. Clostridium perfringens
D. Bacillus
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During sexual reproduction in Rhizopus, projections from two compatible hyphae are attracted towards each other. These hyphae are called -
Match the LIST-I with LIST-II
LIST-I
Class of Mutagens		LIST-II 
Examples
A. Alkylating agentIII. Mustard gas
B. Base analogIV. 5-Bromouracil
C. Intercalating agentI. Acridine Orange
D. Deamination agentII. Nitrous acid
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Selaginella is also known as:
In angiosperms, which process involves the fusion of male gamete with the egg cell?
Which of the following order is not included in Stachyospermae?
The requirement of sunlight for the germination of seeds, is known as:
A eukaryotic cell is exposed to a chemical that inhibits the 5' capping of pre-mRNA. What is the most likely effect on translation?
Mesosome is a specialized and differentiated form of __________.
The correct karyotype description of Patau Syndrome is ____________.
Which nitrogen fixing symbiont is associated with sugarcane as a host plant?
Transformation in bacteria was discovered by:
What effect does the hypermethylation of promoter regions typically have on gene expression?
A specimen cited in the protologue is neither the holotype nor an isotype, nor one of the syntypes. This specimen is known as:
If the number of chromosomes in the egg cell of a plant is 8, then what would be the number of chromosomes in its endosperm?
Sequence the following events involved in a point mutation in DNA.
A. Alteration in the amino acid sequence of a protein.
B. Change in mRNA codon during transcription.
C. Substitution of a single nucleotide in the DNA sequence.
D. Possible disruption of protein function or structure.
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In which specific region of the chloroplast, does Calvin cycle occurs?
Identify the correct sequence of steps in a dihybrid cross to test Mendel's Law of Independent Assortment
A. Selection of two traits in the parent generation.
B. Crossing of pure - breeding parents.
C. Analysis of phenotypic ratios in the F₂ generation.
D. Observations of gamete combinations in the F₁ generation.
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The genera which belongs to the family Characeae are:
A. Tolypella
B. Nitella
C. Nigella
D. Chara
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Among the following ecosystems, which has the least Net Primary Production (NPP)?
A plasmid vector contains a multiple cloning site (MCS) within the lac-Z gene. If foreign DNA is inserted into the MCS, what happens when competent cells are transformed with this plasmid and allowed to grow on a nutrient medium plate with X-gal and IPTG?
The example of facultative CAM plant which carries on C₃ metabolism under unstressed conditions is:
What is the correct general scheme of the fungal succession on herbivore dung:
A. Basidiomycetes
B. Discomycetes
C. Phycomycetes
D. Pyrenomycetes
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Sequentially arrange the steps involved in cryopreservation of plant cells in order of their occurrence.
A. Raising sterile tissue culture
B. Determination of viability
C. Freezing, Storage
D. Addition of cryoprotectants.
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What is the primary function of Bt toxin in genetically modified crops like Bt Cotton?