List of top Botany Questions

Mendel deduced the genetic principle of inheritance by experimenting on sweet pea plants. One of the experiments involved crossing plants with two contrasting characters, tall (dominant) and dwarf (recessive), which yielded all tall plants in the first generation. When the same genetic cross was independently repeated by a researcher, only short plants were obtained. Which one of the following can possibly explain the altered outcome?
When a true breeding tall plant containing red flowers was crossed with the true breeding dwarf plant containing white flowers, all F1 plants were tall with red flowers. When the F1 plant was self-pollinated, considering independent assortment of plant height and flower colour traits, the calculated percentage probability of dwarf plants bearing red flowers in the F2 generation is ________ percent (round off to 2 decimal places).
Which of the following is/are phanerogamic parasite(s)?
Match the secondary metabolites in Group-I with types of secondary metabolites in Group-II in CORRECT order.
Which one of the following combinations is correct?
Match Group I (plant natural product), Group II (class) and Group III (source plant) in CORRECT combination.
Match Group I (plant disease), Group II (causal organism) and Group III (affected plant) in \textbf{CORRECT combination.}
Phylogenetic system of classification is/are proposed by
Anomalous secondary growth is observed in
An \textit{Arabidopsis thaliana mutant plant developed defective flowers with altered floral organ identity and patterning. In this mutant, the four floral whorls contain Sepal-Sepal-Carpel-Carpel, from the periphery to the center of the flower. Based on the typical ABC model of floral organ patterning, which among the following are mutated in this plant?}
Which of the following plant diseases is/are caused by bacteria?
In NADP\(^+\)-malic enzyme type C\(_4\) photosynthesis cycle, \(n\) molecule(s) of ATP is/are required for the assimilation of one molecule of CO\(_2\). The value of \(n\) is ________ (in integer).
In Angiosperms, normally ‘Exarch Xylem’ occurs in
‘Quiescent Center’ is present in
Filamentous photosynthetic algae were placed on a microscopic slide and illuminated with light of different colors as illustrated.
The bacteria that are known to migrate towards the region of high \( O_2 \) were also added uniformly on the slide. Which one of the following options illustrates the distribution of bacteria along the length of the microscopic slide after illumination?
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The number of ATP molecules required for the complete assimilation of one molecule of CO\(_2\) in the Calvin cycle is ______.
What is the botanical name of Methi (Fenugreek)?
White jute is obtained from which plant?
Why do purple and blue colors appear in plants?
What elements are found in xylem?
Paracytic stomata are found in which plant family?
Phosphorus represents what in plants?
Ethylene is the precursor of which compound?
Who conducted the bacterial transformation experiment?
Which enzyme adds the RNA primer during DNA replication?
What is the interface between G1 and S phase called?