List of top Botany Questions

Assertion (A): In Liliaceae, flowers are homochlamydeous
Reason (R): In Liliaceae perianth is differentiated
Consider the following statements
Assertion (A): Achyranthes shows spike inflorescence
Reason (R): Spike shows basipetal arrangement of sessile flowers
Unilocular (one chambered) ovary becomes bilocular (two chambered) due to the formation of false septum is seen in
Example for "runners"
I. Underground stem in Strawberry
II. Sub-aerial stem in Oxalis
III. Lateral branches of Chrysanthemum
IV. Lateral branches of Jasmine
Anatomical characters applicable to hydrophytes and xerophytes respectively are
Which of the following is prevented by unisexual flowers that is present on different plants?
Study the following table. The correct match is.
Select the phases which are included in the 'Interphase'.
A. S phase
B. M phase
C. G₁ phase
D. G₂ phase
Choose the correct answer from the options given below:
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.
Choose the correct answer from the options given below:
Match the LIST-I with LIST-II
LIST-I
Type of Proteins		LIST-II 
Examples
A. Structural proteinsIV. Collagen
B. Transport ProteinsI. Ion Channels
C. Hormonal ProteinsII. Insulin
D. Storage ProteinsIII. Seed Proteins
Choose the correct answer from the options given below:
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.
Choose the correct answer from the options given below:
Which of the following best explains the fluidity of the plasma membrane ?
The enzyme responsible for synthesizing RNA primers during DNA replication is -
Which of the following order is not included in Stachyospermae?
Which of the following is incorrectly matched ?
Which sequence of steps is correct in the development of a genetically modified (GM) crop?
A. Insertion of the gene into the vector.
B. Identification of a desired gene.
C. Selection and screening of transformed plants.
D. Transfer of the vector into a plant cell.
Choose the correct answer from the options given below:
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 correct karyotype description of Patau Syndrome is ____________.
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.
Choose the correct answer from the options given below:
What effect does the hypermethylation of promoter regions typically have on gene expression?
Which of the following is a characteristic feature of Bacterial Artificial Chromosome (BAC) vector?
Treating chromatin with a non specific nuclease yields a segment of about 168 bp which is bound to 9 histone molecules (H2A, H2B, H3, H4 and H1). This whole structure is known as:
What is the primary function of Bt toxin in genetically modified crops like Bt Cotton?
Which of the following hormones is synthesized from methionine?
Mesosome is a specialized and differentiated form of __________.