List of top Botany Questions

Match the following:

Select the correct statements among the following
I. The use of biofertilizers reduce the use of chemical fertilizers.
II. Mycorrhizae enhances phosphorous content in the soil.
III. An important biofertilizer in legume crops is Rhizobium.
IV. Glomus forms mycorrhizal association with plants.

Match the following

List - I	List - II
A. Ori	IV. Controlling the copy number of linked DNA
B. Selectable marker	III. Permitting the growth of transformants
C. Cloning site	II. Single recognition site to link alien DNA
D. Cloning vector	I. Low molecular weight

Choose the correct statements among the following
I. Pure DNA can be isolated by using ribonuclease and proteases.
II. Ethidium bromide staining facilitates the visualisation of DNA fragment in Agarose gel.
III. Sticky and ligation techniques help to cut the gene of interest from the source DNA.

Choose the correct statement among the following
I. Validity of GM research and safety of introducing GMO has to be given by GEAC.
II. Molecular farming means utilization of plants as biofactories for obtaining commercially useful products.
III. Basmati Rice variety is a transgenic plant with improved nutritional value.
IV. “Flavr savr” is suitable for food storage technology.

Choose the correct statements among the following
I. Streptokinase is produced by Streptococcus.
II. Saccharomyces cerevisiae is used for commercial production of Ethanol.
III. Cyclosporin-A — blood cholesterol lowering agent produced by Trichoderma polysporum.
IV. Statin produced by yeast.

The given figure represents the termination process of transcription in bacteria. Identify A, B and C respectively

Choose the correct statements among the following
I) Pasteur given the name virus.
II) Lichen are good pollution indicators.
III) Three Domain groups were originated from progenote.
IV) Chrysophytes belongs to Monera.

Match the following and choose the correct option from the lists given below:

24 PGAL molecules are formed in $C_3$ plant. Calculate the number of $CO_2$ used and the number of G3P used for regeneration of RUBP molecules?

Choose the correct series of bacteria that cause Tetanus, Diphtheria, Crown gall and Blight, respectively

Identify the correct matching pair to Calvin cycle:

Choose the correct statements among the following
I. Conjugation is a conservative process because donor bacteria donot retain copy of genetic material.
II. In Bacterial transformation, genetic information is expressed in recipient cell.
III. Salmonella typhimurium is a transformation bacteria.
IV. Biologically active toxic pollutant can be detected by Biosensors.

How many ATP are formed through (ETS) Electro Transport System alone from
A) Glycolysis
B) Oxidative decarboxylation of 2 molecules of pyruvic acid
C) 2 Acetyl coenzyme A molecules respectively

The figure given below shows lac operon and its function. Identify A, B, C and D respectively:

Identify the incorrect pair:
I. Zinc - ABA Synthesis
II. Boron - Cell elongation
III. Nickel - Urease activator
IV. Molybdenum - Carbohydrate translocation

Study the following and identify the correct combinations:

During biological nitrogen fixation in root nodules ratio of protons, electrons and ATP required is