List of top Botany Questions

Identify the key events in Anaphase of Mitosis
A) Centromeres split and chromatids separate
B) Chromatids move to opposite poles
C) Chromosomes are moved to spindle equator

Peripheral Vascular Bundles are generally smaller than the centrally located in the following plant stem

Dumb-bell shaped guard cells are seen in

Choose the correct statements among the following
A) By the deposition of the organic compounds the heartwood is resistance to attacking of Insects
B) Growth ring is produced with the activity of autumn wood
C) The function of phellogen is to provide protection layer to the broken parts of outer cortical and epidermal layers, in the secondary growth of vascular cambium

A DNA strand has a length with 12 full turns. Then identify the number of Nitrogen bases in total

Choose the correct statements among the following
A) Sodium and potassium pumps in the cell utilise the ATP
B) For transport of polar molecules across membrane require carrier proteins
C) Secondary cell wall formed by addition of lignin material in the interfibrillar spaces of cellulose
D) Golgi complex, vacuole and peroxisomes constitute the Endomembrane system of cell

Choose the correct statements among the following
A) Endoplasmic reticulum will divide the intracellular space as luminal and extra luminal compartments
B) Camillo Golgi observed densely stained reticulate structures close to the cell wall
C) In Amoeba contractile vacuole formed to engulf the food particle
D) Protein synthesised by ribosomes are modified in the cisternae of golgi apparatus

Assertion (A): Classification of plants based on the information from other branches of Botany is called Omega Taxonomy
Reason (R): Studies of palynology, embryology and phytochemistry also support their advanced classification

Match the following

Identify the Apomixis and parthenocarpy among the following statements respectively:
A) Production of seeds without fertilization
B) Occurrence of more than one embryo in a seed
C) Production of fruits without fertilization of ovary
D) Cultivation of hybrid plants

Identify the plants with the following characters respectively:
I) Swollen storage fibrous roots
II) Roots absorbing moisture from atmosphere
III) Roots to get oxygen for respiration
A) turnip, B) Avicennia, C) Vanda, D) carrot, E) Asparagus, F) Maize, G) sweet potato

Assertion (A): Organisms habitat, its internal physiology and other factors collectively responsible for how it reproduce
Reason (R): Reproduction enables the continuity of the species

Match the following

Assertion (A): Biofertilizers can be used to avoid soil and water pollution
Reason (R): By intensive tree plantation nutrients can be recycled

Choose the correct statements among the following

The defining feature of life forms depends on the following

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In an experiment, Mendel observed that the \(F_1\) progeny plants are all tall and none are dwarf.
Reason R: Stem height is a contrasting trait, with tall being dominant and dwarf being recessive.
In the light of the above statements, choose the most appropriate answer from the options given below:

Choose the incorrect pair.

\[ \begin{array}{|c|l|l|} \hline \text{Element} & & \text{Role} \\ \hline \text{A} & \text{Zinc} & \text{Auxin synthesis} \\ \hline \text{B} & \text{Nickel} & \text{Activator of urease} \\ \hline \text{C} & \text{Molybdenum} & \text{Component of nitrogenase} \\ \hline \text{D} & \text{Manganese} & \text{Activator of catalase} \\ \hline \end{array} \]

Identify the correct statements related to the class Phaeophyceae. \[ \begin{aligned} A. &\text{Asexual reproduction occurs usually by biflagellate zoospores}\\ B. &\text{Sexual reproduction is by oogamous method only}\\ C. &\text{Food is stored as simple carbohydrates in the form of mannitol or laminarin}\\ D. &\text{Major pigments are chlorophyll }a,c,\text{ xanthophylls and carotenoids}\\ E. &\text{Cellulose cell wall has outer gelatinous coating of algin} \end{aligned} \] The correct answer is (any three)

Zygote is diploid in which life cycle? \[ \begin{aligned} I. &\text{Haplontic}\\ II. &\text{Diplontic}\\ III. &\text{Haplodiplontic}\\ IV. &\text{Diplohaplontic} \end{aligned} \] The correct answer is (and = all, only = only)

From the following lists, choose the correct combinations.

\[ \begin{array}{|c|l|l|l|} \hline & \text{List-I (Substrate)} & \text{List-II (Enzyme)} & \text{List-III (Product)} \\ \hline \text{I} & \text{PGA + ATP} & \text{Phosphoglycerokinase} & \text{Bis PGA} \\ \hline \text{II} & \text{Bis PGA + NADPH} & \text{G-3-P dehydrogenase} & \text{G-3-P} \\ \hline \text{III} & \text{Xylulose} & \text{Epimerase} & \text{Ribulose} \\ \hline \text{IV} & \text{Fructose + G-3-P} & \text{Transketolase} & \text{Xylulose} \\ \hline \end{array} \]
The correct answer is (and = all, only = only)

Choose the incorrect pair (and = all, only = only).

\[ \begin{array}{|c|l|l|} \hline & \text{List-I} & \text{List-II} \\ \hline \text{A} & \text{Frankel Conrat} & \text{Genetic nature of DNA} \\ \hline \text{B} & \text{Bessey} & \text{Phylogenic classification} \\ \hline \text{C} & \text{Buchner} & \text{Zymase} \\ \hline \text{D} & \text{Sumner} & \text{Catalase} \\ \hline \end{array} \]

Choose the incorrect pair (and = all, only = only).

\[ \begin{array}{|c|l|l|l|} \hline & \text{Type of fruit} & \text{Example} & \text{Character} \\ \hline \text{A} & \text{Pepo} & \text{Cucumber} & \text{Develops from inferior ovary} \\ \hline \text{B} & \text{Legume} & \textit{Pisum} & \text{Dehisce ventrally} \\ \hline \text{C} & \text{Caryopsis} & \textit{Oryza} & \text{Pericarp and seed coat are unfused} \\ \hline \text{D} & \text{Sorosis} & \text{Pineapple} & \text{Inflorescence develops into fruit} \\ \hline \end{array} \]

In which parts of the plants of Dioscorea and Agave, the food material is stored?

\[ \begin{array}{|c|l|l|} \hline & \textit{Dioscorea} & \textit{Agave} \\ \hline \text{I} & \text{Floral buds} & \text{Tap root} \\ \hline \text{II} & \text{Subaerial stem} & \text{Floral buds} \\ \hline \text{III} & \text{Underground stem} & \text{Vegetative buds} \\ \hline \text{IV} & \text{Vegetative buds} & \text{Floral buds} \\ \hline \end{array} \]

Which of the following statements are correct? \[ \begin{aligned} I. &\text{Inflorescence in Carrot is Umbel}\\ II. &\text{Male flowers of Ficus have three stamens}\\ III. &\text{Pneumatophores of Rhizophora are positively geotropic}\\ IV. &\text{Axillary bud develops into tendril in Grapevine} \end{aligned} \] The correct answer is (and = all, only = only)