List of top Plant Sciences Questions

Bengal gram is considered as an inseparable other crop plant in the seed production field of the

Preceding crop requirement is an essential consideration during seed production to minimize the chances of genetic contamination through-

Given below are two statements
Statement I: In Rhizobium- legume symbiosis large and pink colored nodules are considered good for efficient nitrogen fixation
Statement II: Pink color of the nodules is due to the presence of leg-haemoglobin pigment
In light of the above statements, choose the correct answer from the options given below:

The maximum permissible limit of husk-less seeds in sunflowers is-

Match the Indian Agricultural Revolutions with the related commodities
List I: A. Blue revolution, B. White revolution, C. Yellow revolution, D. Green revolution, E. Silver revolution
List II: I. Milk, II. Egg/Poultry, III. Food Grains, IV. Oil Seeds, V. Fisheries
Choose the correct answer from the options given below:

The year 2023 has been declared as ‘International Year of …...........’

Ukraine-Russia war has majorly impacted the price of which of the crop globally

Flag leaf clipping in hybrid seed production in rice is a regular practice. It is done to achieve-

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Viruses are termed as obligate intracellular parasites.
Reason R: Viruses cannot reproduce independently, they can grow only inside a living cell.
In light of the above statements, choose the correct answer from the options given below:

Which of the following is/are a part of SARS CoV
A. Presence of Envelope
B. Positive-sense single stranded RNA
C. Spike protein
D. Tail
Choose the correct answer from the options given below:

A bacteriophage genome integrated into the circular bacterial chromosome is known as

Given below are two statements
Statement I: According to Koch’s Postulates, inoculation with disease causing microorganism must be able to produce disease symptoms in the susceptible host
Statement II: According to Koch's Postulates, the microorganism must be recoverable from the diseased host
In light of the above statements, choose the correct answer from the options given below:

Match the Following:

Match the following:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Meiosis is a reductional division
Reason R: In meiosis, the chromosome number is reduced from diploid to haploid
In light of the above statements, choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Mycoplasmas are pleomorphic in shape
Reason R: Cell wall in Mycoplasmas is flexible
In light of the above statements, choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Archaea are insensitive to chloramphenicol antibiotic
Reason R: Archaea do not contain peptidoglycan in the cell wall
In light of the above statements, choose the correct answer from the options given below:

Match the following:

The subunits of 80S ribosome include

Given below are two statements
Statement I: Self-replicating, circular, extrachromosomal DNA present in bacteria is known as Plasmid
Statement II: Copy number of Plasmids is fixed in a bacterial cell
In light of the above statements, choose the correct answer from the options given below:

According to the latest classification, Prokaryotes are divided into which two domains?

Given below are two statements:
Statement I: Diazotrophs possess Nitrogenase enzyme that helps in biological nitrogen fixation.
Statement II: Both Rhizobium and Azotobacter are symbiotic nitrogen fixers.

In light of the above statements, choose the correct answer from the options given below:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Outer membrane in Gram negative bacteria is more permeable than the inner membrane.
Reason R: Porin proteins are present in the outer membrane.

In light of the above statements, choose the correct answer from the options given below:

Which of the following bonds are involved in maintaining protein structures?
A. Peptide bond
B. Hydrogen bond
C. Ionic Bond
D. Disulfide bond
E. Hydrophobic interactions

Match the following scientific discoveries and techniques in List I with their corresponding scientists in List II:

List I
A. Polymerase Chain Reaction
B. Penicillin
C. Bacillus anthracis
D. Pasteurization
E. Smallpox Vaccine

List II
I. Robert Koch
II. Kary Mullis
III. Edward Jenner
IV. Alexander Fleming
V. Louis Pasteur