List of top Botany Questions

Among the following fungi, which are placed under class Deuteromycetes?
(Alternaria, Aspergillus, Mucor, Claviceps, Penicillium, Trichoderma, Colletotrichum, Ustilago, Polyporus, Puccinia, Agaricus, Neurospora, Albugo, and Rhizopus)
In Herbarium sheets, label provides information about
Which of the following is not a biosafety concern for GM crops?
Enzymes that remove nucleotides from ends and make specific cuts:
Identify the wrongly matched one:
Choose the incorrect statement:
Choose the correct statements: ABA plays an important role in stratification Decapitation results in growth of lateral buds Kinetin naturally occurs in plants Vernalization promotes flowering by high temperature
Based on ICTV system, AIDS virus belongs to the genus:
One acre of trees annually absorbs CO$_2$ equal to that produced by driving 26000 miles. How many people’s oxygen needs for a year does this cover?
Assertion (A): Transport of plant growth regulators is strictly polarized and unidirectional.
Reason (R): Organic and mineral nutrients undergo multi-directional transport.
In a genetic cross between a true-breeding tall parent bearing red flowers and a true-breeding dwarf parent bearing white flowers, only tall plants with red flowers are obtained in the F$_1$ population. Considering these two traits segregate independently, if one tall individual is selected from the F$_2$ population, the probability that it would be genotypically homozygous for plant height and make red flowers is ........... {(Round off to two decimal places)}
Which of the following reactions in plants is/are catalyzed by the malic enzymes?
Which of the following sequential reactions correctly represent(s) the flow of electrons from NADH to O2 in plant mitochondrial electron transport chain?

Correctly match the enzymes used as selectable markers (Group I) and the chemicals used for their selection (Group II):

Correctly match the economically important specialized metabolites (Group I) with their broad chemical classes (Group II):

Correctly match the names of the plant taxonomists (Group I) with the titles of the books they authored (Group II):

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 agents causes the necrotic ring spot disease in stone fruits?
Which one of the following commercially important carbohydrates is naturally produced only by the members of the plant kingdom?
Which one of the following mature cell types is live but usually lacks nucleus?
Number of chromosomes in maize root cells at G1 phase, after S and M phases respectively
Taxonomic keys are based on
The total number of meiotic divisions that occurred in a flower of malvaceae, which has 60 stamens with 25 microspore mother cells in each sporangium and 25 ovules in each carpel:

Diagram represents central dogma of molecular biology. Choose the correct labelling of "X" and "Y":