List of top Botany Questions

Consider a diploid plant species where the cells in the epidermis (the outermost single cell layer) always divide in the anticlinal orientation. If one such cell within the central zone of the shoot apical meristem (SAM) spontaneously becomes tetraploid at the seedling stage, which one of the following cellular arrangements would be most likely observed if the meristem is examined at the adult stage?
Identify the correct statement(s) with respect to plant disease:
Which one of the following commercially important carbohydrates is naturally produced only by the members of the plant kingdom?
Which one of the following agents causes the necrotic ring spot disease in stone fruits?
Which one of the following mature cell types is live but usually lacks nucleus?
Genetic nature of Ribonucleic acid was discovered by:
The table given below is related to the checkerboard of dihybrid F\(_2\) progeny of Mendel’s experiment. Identify the correct combinations:
Dihybrid Cross and Phenotypes
Identify the correct combinations:
Dominant and Recessive Traits
Identify the correct pair of variety crop developed for resistance to the disease:
‘A’ diploid chromosome number is 4. ‘B’ haploid chromosome number is twice to that of A. ‘C’ diploid chromosome number is thrice to that of A. A, B and C respectively are

Identify A and B in the diagram given below: 


 

Identify the wrong statement from the following:
While isolating DNA from bacteria the following enzyme is not used:
In Morgan's linkage experiments on Drosophila recombinants percentage for white eye and yellow body is:
Match the following % Table \begin{table}[h!] \renewcommand{\arraystretch}{0.9} % For better row height \centering \begin{tabular}{|l|l|} \hline List - I & List - II
\hline A) ABO blood groupings & I) Frame-shift mutations
\hline B) Starch synthesis in pea seeds & II) Sickle cell anemia
\hline C) Point mutation & III) Pleiotropy
\hline D) Deletion of DNA base pairs & IV) Co-dominance
\hline \end{tabular} \end{table}
The correct answer is

Assertion (A): Satellite is a small fragment-like structure found in some chromosomes. 
Reason (R): It is a non-staining secondary construction at a constant location.

Arrange the ratios in the order of monohybrid test cross: incomplete dominance; and dihybrid cross.

Study the following table with reference to the meiocyte of Rice and find correct combination: 

Match the following genetic terms with their appropriate descriptions:

Identify the similar behavior between chromosomes and genes:
A. Only one pair segregates independently
B. Occurs in pairs
C. Segregates at the gamete formation and only one of each pair is transmitted to gametes
D. Pair segregates independently

Assertion (A): Some essential elements can alter the osmotic potential of a cell. 
Reason (R): Sulphur is the main constituent of several coenzymes. 
 

Identify A, B, C, and D parts in the vascular bundle of monocot stem: 

Assertion (A): Biological control developed for treatment of plant diseases.
Reason (R): Trichoderma are free living fungi common in root ecosystem.
Stem tubes, Corn, Rhizome, Cladophyll, Bulbil, Stolon modifications shown by this correct sequence of plants
The author and classification followed in the below mentioned books:
I- Families of flowering plants
II- Genera plantarum
III- Species plantarum