List of top Botany Questions asked in Andhra Pradesh Engineering Agriculture and Medical Common Entrance Test

Assertion (A): Bacillo viruses attack insects and arthropods
Reason (R): They have no negative impact on non-target insects

Choose correct pairs from the following: 

Match the following food items with the nutrients they are commonly associated with: 


 

Match the following scientific terms with their appropriate descriptions: 

Process of technique of detecting HIV in suspected AIDS patients:
While isolating DNA from bacteria the following enzyme is not used:

Identify A, B, and C in the diagram of pBR322 (A, B, and C are restriction sites):


 

For efficient translation process, mRNA must have these:
Removal of introns and joining of exons in defined order is called:
In Morgan's linkage experiments on Drosophila recombinants percentage for white eye and yellow body is:

Match the following genetic terms with their appropriate descriptions:

In TMV (Tobacco Mosaic Virus), serially the Length, diameter, molecular weight, and capsomers number are:

Assertion (A): Rhodospirillum is not a photoheterotroph bacteria. 
Reason (R): Photoheterotrophs obtain energy from light but carbon from organic sources.

Assertion (A): New cells are always being added to the plant body by the activity of the meristem. 
Reason (R): The cells/tissues arising out of the same meristem have different structures at maturity.

Arrange the following respiratory substrates in increasing order based on ATPs they give on complete oxidation in three stages of aerobic respiration:
I: G-3-P (Glyceraldehyde 3-Phosphate)
II: Acetyl CoA
III: Acetyl CoA
IV: \(\alpha\)-Ketoglutarate (\(\alpha\)KGA)

Give the ratios between the following compounds in photosynthesis of plants: 
A. Tetroses and sedoheptuloses 
B. CO2 fixed and net production of G-3-P 
C. DHAP takes part in regenerative phase and RUBP formed

The ratio of the number of electrons to be excited from PS II during non-cyclic photophosphorylation and PS I during cyclic phosphorylation respectively to form 120 ATPs

Match the following: 

Assertion (A): Influx of ions into inner space of cells is an active process.
Reason (R): Ions are available for free exchange in free space.
A: Fe, B: K, C: P, D: S
These elements are important for proteins in the following activities:
I. Major constituent of proteins.
II. Stabilizing the protein structure.
III. Important constituent of certain proteins.
IV. Involved in protein synthesis.

Find incorrect statements related to water relations in plants: 
A. Water potential difference is the drawing force for osmosis. 
B. The driving force of diffusion is the concentration gradient. 
C. Pressure potential is negative.

From the diagram answer the following:

Assertion [A]: The gradual and predictable change in the species composition of a given area is called ecological succession.
Reason [R]: Biotic community is slow and undergo changes with the passage of time.

Choose the correct statement: 
I. Continuous decline in pollinator activity could mean rising of fruits and seeds production. 
II. Conversion of wild lands for domestic use is the cause of disruption of pollinators. 
III. Submerged macrophytes enrich the dissolved oxygen in water.

Choose the incorrect statements related to internal organization of plants: 
I. Stomata regulate the process of photosynthesis and gaseous exchange. 
II. In bicollateral vascular bundles, xylem and phloem are situated at the same radius of vascular bundles. 
III. Monocot root has more xylem bundles compared to Dicot root.