List of top Botany Questions

Assertion (A): Till date no man made technology has been able to rival the microbial treatment of sewage. Reason (R): Major part of the waste water is human excreta, this may contain organic matter, microbes, and some pathogens.

Choose the correct statements among the following: A) Organisms that enrich the nutrient quality of soil is called biofertilizers B) Certain bacteria groups anaerobically on cellulosic material produce large amount of Methane, $CO_{2}$ and $H_{2}$ C) In anaerobic sludge digester bacteria produce hydrogen sulphide only D) Wine and beer are produced by distillation of rice

Match the following: figure [H]

figure

Assertion (A): Bacterium to provide resistance to insects without need for pesticides is biopesticide. Reason (R): The choice of genes depends upon the crop and targeted pest in pest resistance method.

Choose the incorrect statement of the following:

Specific position of DNA where endonucleases make cut with in DNA are:

DNA polymerase and deoxynucleotides helps this step in polymerase chain reaction:

Assertion (A): The genetic material should be stable enough not to change with different stages of life cycle, age, with change in physiology of organism. Reason (R): stability of genetic material is clearly evidenced with transforming principle.

Identify the wrong match:

Which of the following functions are concerned with the plant growth regulator cytokinin? I. Chloroplast production in leaves II. Stomatal closure III. Root growth and root hair formation IV. Overcome apical dominance

Identify the incorrect match:

Which of the following pair of symptoms are not commonly appear during viral diseases to plants:

What is the percentage of Pink colour flowered plants in F2 generation of snapdragon monohybrid cross:

The electron transport system present in the mitochondrial membrane, complex-II and complex-IV are respectively:

Enzyme-substrate complex (ES-complex) formation was explained with 'Induced-fit' hypothesis by:

First action spectrum of photosynthesis was described by:

Which is not true regarding non-cyclic electron transport:

Assertion (A): Pollinators such as bees, moths, butterflies beetles and flies are major invertibrates. Reason (R): Destruction of land for domestic uses, the food and resting requirements of pollinations are disrupted.

Identify the mineral which is an activator for the enzyme IAA oxidase.

Which one of the following bacteria forms root nodules in Alnus?

Choose the incorrect statements: I. Transport of water and minerals is essentially unidirectional from roots to stem. II. Phloem facilitates unidirectional flow of water and minerals. III. Organic and mineral nutrients undergo multidirectional transport through phloem.

Choose the correct statements: A) The first amino acid in a protein chain is in the left end and termed as C-terminal amino acids. B) Long protein chain folded upon itself like a hollow woolen ball is called tertiary structure. C) In general, only right handed helices are observed in protein. D) In general, polysaccharides will have glycosidic bond formed by dehydration.

Identify the characters of Bicollateral vascular bundles. A) Conjoint vascular bundle. B) Phloem on either side of xylem separated by cambium. C) Radial vascular bundle.