List of top Plant Sciences Questions asked in ICAR AIEEA (PG)

The plant pigment, which is associated with the photoperiodism in plants is -

A seed technologist placed a set of 100 seeds for a germination test. After 8 days, she found that 70 seeds germinated and 30 seeds did not. The most probable reasons for the no germination of these 30 seeds are -
(A) The seeds were not viable at all
(B) The seed coat was impermeable
(C) The seed coat was permeable but the seeds were dead
(D) The seeds were viable but the conditions for the germination were not favorable
Choose the correct answer from the options given below :

Which one of the following terminology does NOT represent the seed dispersal mechanism in crops/plants ?

The practice of growing different crops in recurrent succession on the same land is known as

The breeding method usually used to produce the nucleus seeds of a variety of cereal crops is -

One of the most important considerations during the maintenance and production of Breeder's seed in an open-pollinated variety (OPV) is the -

Given below are two statements :
Statement (I): Biogas is a mixture of $\text{CH}_4$, $\text{CO}_2$ and $\text{H}_2$.
Statement (II): Biogas is produced by aerobic digestion of organic waste material.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements :
Statement (I): Viral genome is protected by protein shell known as capsid.
Statement (II): Viruses can be used as vectors to transfer foreign gene into plants.
In light of the above statements, choose the most appropriate answer from the options given below.

According to Koch’s first postulate

How many nucleotides will be present in a double stranded DNA fragment of 2 kb ?

The interaction in which one organism is benefitted and the other is neither benefited nor harmed is known as

Microbes which consume organic molecules for carbon and energy are called ?

In bacterial conjugation, what is the essential property of a donor strain ?

Which of the following association is favourable for P nutrition in higher plants ?

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : In Bacillus culture raised in a chemically defined medium, sporulation is initiated in the stationary phase.
Reason (R) : Lack of nutrients and high cell density trigger sporulation.
In light of the above statements, choose the correct answer from the options given below.

Which of the following is involved in the transfer of amino acids from cytoplasm to the ribosome for protein synthesis ?

Given below are two statements :
Statement (I): Irradiation of DNA with UV light cause formation of covalent bond between the thymine molecules on the same strand.
Statement (II): Thiamine dimerization in DNA caused by UV radiations can be reverted by Photo-reactivation.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements :
Statement I : Bacterial plasmids can be used as a vector for gene transfer in plants.
Statement II : Plasmids are double stranded, extrachromosomal DNA found in bacteria which are capable of autonomous replication in suitable host.
In light of the above statements, choose the correct answer from the options given below.

Which of the following microorganisms lacks cell wall ?

Match List-I with List-II

List-I (Fungi) & List-II (Importance)
(A) Pleurotus ostreatus & (I) Phytopathogenic
(B) Magnaporthe oryzae & (II) Entomopathogenic
(C) Rhizophagus irregularis & (III) Edible
(D) Metarhizium & (IV) Mycorrhizal

Which of the following have the ability to convert ammonia into nitrite ?
(A) Nitrosomonas
(B) Nitrosospira
(C) Nitrosococcus
(D) Nitrobacter
(E) Nitrococcus
Choose the correct answer from the options given below :

Given below are two statements :
Statement (I) : Phytoplasmas are wall less bacteria.
Statement (II) : Phytoplasma do possess flagella.
In light of the above statements, choose the most appropriate answer from the options given below.

Given below are two statements:
Statement (I): Lichens are the symbiotic associations between a photobiont and a mycobiont partner.
Statement (II): Mycorrhizae are the symbiotic associations between plant root and fungi.
In light of the above statements, choose the most appropriate answer from the options given below.

Which of the following traits are observed in archaea ?
(A) Absence of Peptidoglycan in cell wall
(B) Resistant to kanamycin
(C) Endospore formation
(D) Presence of S layer
Choose the correct answer from the options given below:

Given below are two statements :
Statement (I): Plasma membrane in bacteria is composed of double layer of phospholipid molecules.
Statement (II): Plasma membrane is the site of enzymes involved in energy production in bacteria.
In light of the above statements, choose the most appropriate answer from the options given below.