List of top Botany Questions asked in Andhra Pradesh Engi Agriculture & Pharmacy CET

These features are not characteristics of dicotyledonous root:

• A. Radial vascular bundles.
• B. Pith little or absent.
• C. Vascular bundles 15 – 20.
• D. Cambium ring do not develop.

The most abundant protein in the whole of the biosphere

Find the correct sub-phase based on the arrangement of chromosomes during M-phase. M-phase -- The arrangement of chromosomes at different stages.

In the chromatin the charge of a DNA and associated proteins, the number of types of histones and copies are
A. Positive, Negative
B. Negative, Positive
C. 4.2
D. 16.4

Number of base pairs in a full turn of the helical strand and the distance between base pairs in B-DNA.

The hypodermis tissues in dicot and monocot stems respectively

Arrange the following events in the correct sequence during the process of fertilization in Angiosperms: I. Fusion of other male gamete with polar nuclei
II. Transfer of pollen grains from anther to stigma
III. Fusion of male gamete with egg nucleus
IV. Release of male gametes into cytoplasm synergid
V. Pollen tube formation

The correct combinations among the following I. Artificial gene synthesis - H.G. Khorana - Cell Biology
II. Pollen Science - P.K.K. Nair - Pollinology
III. Respiration - Amon - Physiology
IV. Phylogenetic classification - Bessey - Taxonomy

Choose the correct statement related to the morphology of Cassia

Choose the set of wrong combinations A) Acacia - Phyllode - Petiole
B) Nepenthes - Insectivorous plant - Nitrogen requirement
C) Hibiscus - Two leaves at each nodes - Alternate
D) Neem - Number of leaflets attached at common point - Pinnately compound

The following plant is characterized by trimerous flowers, superior and trilocular ovary with axile placentation.

A student has identified certain fungi given below and classified under this number of classes. Mucor, Claviceps, Puccinia, Albugo, Neurospora

Choose the correct answer from the given statements below:

Bacteria that have specialized cell wall and plasma membrane structures to live and withstand extreme environmental conditions are called

Assertion (A): Trichoderma polysporum produces cyclosporin A, an immunosuppressive agent.
Reason (R): It is used in organ transplant patients.

Identify the correct combination.
A. Agrobacterium tumefaciens – vector for transgenic plant.
B. Escherichia coli – selectable marker.
C.Thermus aquaticus – Taq polymerase.
D.Bacillus thuringiensis – BT. Toxin.

The introduction of nematode-specific genes into host using Agrobacterium vectors causes the following action:
I. Formation of dsRNA.
II. Production of sense and antisense RNAs in the host cells.
III. RNA intermediate not formed.
IV. Silencing of specific mRNA of the nematode.

Assertion (A): Epidermis of hydrophytes is useful for absorption and assimilation.
Reason (R): In hydrophytes, epidermal cells are devoid of cuticle and contain chloroplasts.