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

Identify the Anatomical structures based on the following characters given in a series:

Lysigenous cavities in the vascular bundles
Conjoint, open and endarch protoxylem in vascular bundles
More number of stomata in abaxial epidermis

The total number of meiotic divisions that occurred in a flower of malvaceae, which has 60 stamens with 25 microspore mother cells in each sporangium and 25 ovules in each carpel:

Match the following:

Assertion (A): Buds present in the axils of leaves are capable of forming a branch or a flower.
Reason (R): Axillary buds are constituted by the shoot apical meristems.

The number of Guanines and Adenines present in the DNA molecule of pitch at 170° with 130 Hydrogen bonds between base pairs:

Assertion (A): Satellite is a small fragment-like structure found in some chromosomes.
Reason (R): It is a non-staining secondary construction at a constant location.

Identify the cell organelles present in animals and absent in plant cells, present in plant cells and absent in animals, present in only prokaryotes:

The author and classification followed in the below mentioned books:
I- Families of flowering plants
II- Genera plantarum
III- Species plantarum

A mother plant having 16 chromosomes produced ovules and underwent megasporogenesis, then the ploidy of the nucleus of A, B, C, D is:

In Angiosperms arrange the events of pre-fertilization/post-fertilization in a sequence:

These are placentation types based on the attachment of ovules within the ovary:

Ridge
Inner wall of the ovary
Base of the ovary

These are the roots in a sequence to absorb moisture, support, water minerals from other plants.

Choose the incorrect statement related to life cycles:
I. Sporophyte generation is represented by a single-celled zygote.
II. Gametophyte is multicellular in Pteridophytes and Gymnosperms.
III. Life cycle is diphlaplontic in Bryophytes.
IV. Life cycle is haplodiplontic in Pteridophytes.

The correct sequence of plants which help in production of biofertilizers, medicines and protein food is:

Choose the correct matching:

Choose the incorrect statements regarding definition of Living:
(A) Cell division replaces lost cells in certain tissues
(B) In living organisms, growth is from outside
(C) Metabolism is the sum total of all chemical reactions occurring in the living organism
(D) In unicellular organisms, reproduction is not synonymous with the growth

The number of cytosine molecules in a typical ds DNA molecule which is having 20 coils with 480 Hydrogen bonds.

Assertion (A): Root pressure does not play a major role in water movement in tall trees.
Reason (R): Root pressure is responsible for pushing up water to small heights in stem.

Choose the correct pair related to Bioactive compounds.