List of top Botany Questions

Identify the below structural formula along with its related function

Select the correct pair

Assertion (A): In Liliaceae, flowers are homochlamydeous
Reason (R): In Liliaceae perianth is differentiated

Example for "runners"
I. Underground stem in Strawberry
II. Sub-aerial stem in Oxalis
III. Lateral branches of Chrysanthemum
IV. Lateral branches of Jasmine

Which of the following is prevented by unisexual flowers that is present on different plants?

Consider the following statements
Assertion (A): Achyranthes shows spike inflorescence
Reason (R): Spike shows basipetal arrangement of sessile flowers

Unilocular (one chambered) ovary becomes bilocular (two chambered) due to the formation of false septum is seen in

Anatomical characters applicable to hydrophytes and xerophytes respectively are

Study the following table. The correct match is.

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:

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.

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

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:

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

Number of nucleotides in viroid