List of top Botany Questions

Which of the following bacteria belong to the coliform group ?
A. Escherichia coli
B. Streptococcus faecalis
C. Clostridium perfringens
D. Bacillus
Choose the correct answer from the options given below:

What is the role of NAD(P)H as a component of Nitrate reductase in Nitrogen fixation?

Which of the following is used to stain endospores?

Transformation in bacteria was discovered by:

In angiosperms, which process involves the fusion of male gamete with the egg cell?

Match the pollination types in List-I with their correct mechanisms in List-II:

List-I (Pollination Type)	List-II (Mechanism)
A) Xenogamy	I) Genetically different type of pollen grains
B) Ophiophily	II) Pollination by snakes
C) Chasmogamous	III) Exposed anthers and stigmas
D) Cleistogamous	IV) Flowers do not open

Assertion (A): Propionibacterium sharmanii is responsible for large holes in Swiss cheese.
Reason (R): Characteristic texture, flavour and taste of cheese is specific to microorganism.
Identify the correct option from the following:

The following hybridization crop variety is not an insect pest resistance variety

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.

Assertion (A): In prokaryotes the DNA in the nucleoid is organized in large loops held by proteins.
Reason (R): In prokaryotes, negatively charged DNA molecules are held with positively charged proteins.
Identify the correct option from the following:

Choose the incorrect statements among the following
1. Purines and cytosine are common in DNA and RNA.
2. Thymine is present only in RNA.

3. Uracil is present in DNA at the place of Thymine.
4. Adenine and Guanine are Purines

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.

Protein toxin produced by Bacillus thuringiensis that kill corn borer

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.

Number of nucleotides in viroid

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

Mutation is a phenomenon of
1. Alteration of genes
2. Variation in DNA
3. Heritable change in genotype and phenotype of an organism

Arrange the intermediate compounds of Kreb's cycle based on number of carbons in ascending order.

Match the following

List - I	List - II
A) Kinetin	IV) Adenine derivatives
B) ABA (Abscisic Acid)	I) Terpenes
C) GA3 (Gibberellic Acid)	I) Terpenes
D) IAA (Indole Acetic Acid)	III) Indole compound

Choose the correct statement from the following
(I) In Hatch-Slack pathway mesophyll cells lack RuBisCO enzyme
(II) PEP carboxylase is present in bundle sheath of chloroplast
(III) OAA is formed in mesophyll cells
(IV) PEP is primary CO2 acceptor present in chloroplast of bundle sheath cells

The phenomenon of a single gene product may produce more than one effect so that a single gene may be related to more than one character.

Attraction of water molecules to polar surfaces in tracheary elements:

Bacteria that oxidise Ammonia to Nitrite

Match the following:

List - I	List - II
A. Nucleic acids structure	IV. Phosphorous
B. Synthesis of nucleic acid	III. Iron
C. Stabilize protein structure	II. Sulphur
D. Catalase	II. Sulphur

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