Agricultural Biotechnology — Part 2 MCQs with Explanations
Practice high-yield Agriculture & Agronomy MCQs on Agricultural Biotechnology — Part 2 with worked academic solutions for PPSC Agriculture Officer, FPSC, KPPSC, CSS.
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Question 1 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The enzymes for HMS is present in
Correct Answer: Option D — Both A and B
Detailed Academic Explanation:
Both A and B is the correct answer to “The enzymes for HMS is present in”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 2 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The first cytokinin isolated by Miller was
Correct Answer: Option B — Kinetin
Detailed Academic Explanation:
Kinetin is the correct answer to “The first cytokinin isolated by Miller was”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 3 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The type of bonds present in tertiary structure of protein is
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “The type of bonds present in tertiary structure of protein is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 4 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Histone octomer comprise of
Correct Answer: Option D — H2A, H2B, H3 and H4
Detailed Academic Explanation:
H2A, H2B, H3 and H4 is the correct answer to “Histone octomer comprise of”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 5 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
DPD is equal to
Correct Answer: Option A — OP - TP
Detailed Academic Explanation:
OP - TP is the correct answer to “DPD is equal to”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 6 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Which of the following was an unexpected result connected to the transgenic production of the terpenoid linalool
Correct Answer: Option B — Increased transgene expression was not strongly correlated with increased levels of linalool
Detailed Academic Explanation:
Increased transgene expression was not strongly correlated with increased levels of linalool is the correct answer to “Which of the following was an unexpected result connected to the transgenic production of the terpenoid linalool”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 7 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The cofactor for nitrogenase is
Correct Answer: Option D — Both A and B
Detailed Academic Explanation:
Both A and B is the correct answer to “The cofactor for nitrogenase is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 8 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
One unit of Quantasomes contains
Correct Answer: Option B — 230 chlorophyll molecules
Detailed Academic Explanation:
230 chlorophyll molecules is the correct answer to “One unit of Quantasomes contains”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 9 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Urokinase enzyme is produced by
Correct Answer: Option A — Baccillus fastidious
Detailed Academic Explanation:
Baccillus fastidious is the correct answer to “Urokinase enzyme is produced by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 10 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The 30S subunit has
Correct Answer: Option C — A site and P site
Detailed Academic Explanation:
A site and P site is the correct answer to “The 30S subunit has”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 11 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
AIDS lead to destruction of immune system due to depletion of
Correct Answer: Option D — Plasma cells
Detailed Academic Explanation:
Plasma cells is the correct answer to “AIDS lead to destruction of immune system due to depletion of”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 12 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Protein purification can be done by
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Protein purification can be done by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 13 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The group of enzymes that cut DNA molecule at specific sites are known as
Correct Answer: Option C — Restriction endonuclease
Detailed Academic Explanation:
Restriction endonuclease is the correct answer to “The group of enzymes that cut DNA molecule at specific sites are known as”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 14 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The most preferred restriction endonuclease is
Correct Answer: Option B — Type II
Detailed Academic Explanation:
Type II is the correct answer to “The most preferred restriction endonuclease is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 15 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Bioreactors are used for
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Bioreactors are used for”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 16 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
People become tolerant to malaria if they are carriers for
Correct Answer: Option A — Sickle cell anemia
Detailed Academic Explanation:
Sickle cell anemia is the correct answer to “People become tolerant to malaria if they are carriers for”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 17 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The peptide bond formation during protein synthesis is catalysed by
Correct Answer: Option B — Peptidyl transferase
Detailed Academic Explanation:
Peptidyl transferase is the correct answer to “The peptide bond formation during protein synthesis is catalysed by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 18 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The monomeric unit of cellulose is
Correct Answer: Option C — β D glucose
Detailed Academic Explanation:
β D glucose is the correct answer to “The monomeric unit of cellulose is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 19 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
First somatic hybrid was produced by
Correct Answer: Option D — Carlson
Detailed Academic Explanation:
Carlson is the correct answer to “First somatic hybrid was produced by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 20 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Manipulation of the genetic material towards a desired end in a directed and predetermined way is called
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Manipulation of the genetic material towards a desired end in a directed and predetermined way is called”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 21 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The length of linker DNA is
Correct Answer: Option B — 50-70 bp
Detailed Academic Explanation:
50-70 bp is the correct answer to “The length of linker DNA is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 22 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Whiptail in cauliflower is due to deficiency of
Correct Answer: Option C — Mo
Detailed Academic Explanation:
Mo is the correct answer to “Whiptail in cauliflower is due to deficiency of”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 23 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Removal of the topological strain by inducing to the negative supercoiling is carried out by
Correct Answer: Option B — DNA gyrases
Detailed Academic Explanation:
DNA gyrases is the correct answer to “Removal of the topological strain by inducing to the negative supercoiling is carried out by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 24 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The coenzyme derived from Vitamin B5 is
Correct Answer: Option B — Coenzyme A
Detailed Academic Explanation:
Coenzyme A is the correct answer to “The coenzyme derived from Vitamin B5 is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 25 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The number of isomers produced by glucose is
Correct Answer: Option D — 16
Detailed Academic Explanation:
16 is the correct answer to “The number of isomers produced by glucose is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 26 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Cell viability test for protoplast culture was proposed
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Cell viability test for protoplast culture was proposed”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 27 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Example of tandem gene cluster is
Correct Answer: Option C — Both A and B
Detailed Academic Explanation:
Both A and B is the correct answer to “Example of tandem gene cluster is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 28 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The first stable product in C 4 pathway is
Correct Answer: Option B — OAA
Detailed Academic Explanation:
OAA is the correct answer to “The first stable product in C 4 pathway is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 29 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
For molecular characterization of plant species which of the following molecular markers are used
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “For molecular characterization of plant species which of the following molecular markers are used”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 30 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Horizontal gene flow can be reduced by expressing genes in
Correct Answer: Option B — Chloroplast
Detailed Academic Explanation:
Chloroplast is the correct answer to “Horizontal gene flow can be reduced by expressing genes in”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 31 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Double stranded DNA can be isolated from ssDNA or RNA by using
Correct Answer: Option C — Hydroxyapatite column
Detailed Academic Explanation:
Hydroxyapatite column is the correct answer to “Double stranded DNA can be isolated from ssDNA or RNA by using”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 32 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The insertion vector is
Correct Answer: Option A — λgt10
Detailed Academic Explanation:
λgt10 is the correct answer to “The insertion vector is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 33 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
A west African plant produces a protein called Pentadiplandra brazzeana which is about 2000 times as sweet as sugar
Correct Answer: Option A — Brazzein
Detailed Academic Explanation:
Brazzein is the correct answer to “A west African plant produces a protein called Pentadiplandra brazzeana which is about 2000 times as sweet as sugar”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 34 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Chromosome number of 'Arabidopsis' is
Correct Answer: Option B — 5
Detailed Academic Explanation:
5 is the correct answer to “Chromosome number of 'Arabidopsis' is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 35 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Nopaline I is synthesized by
Correct Answer: Option C — Both A and B
Detailed Academic Explanation:
Both A and B is the correct answer to “Nopaline I is synthesized by”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 36 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
The lipoproteins having high percentage of protein is
Correct Answer: Option D — HDL
Detailed Academic Explanation:
HDL is the correct answer to “The lipoproteins having high percentage of protein is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 37 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
In phytoremediation plants are used to
Correct Answer: Option C — Accumilate pollutants from soil thus clears soil from pollutants
Detailed Academic Explanation:
Accumilate pollutants from soil thus clears soil from pollutants is the correct answer to “In phytoremediation plants are used to”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 38 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Stop codon is
Correct Answer: Option B — UAA, UGA, UAG
Detailed Academic Explanation:
UAA, UGA, UAG is the correct answer to “Stop codon is”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 39 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Products will be applicable for patenting only if they are
Correct Answer: Option D — All of the above
Detailed Academic Explanation:
All of the above is the correct answer to “Products will be applicable for patenting only if they are”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
Question 40 of 40
★ PPSC Agriculture Officer
★ FPSC
★ PPSC Agriculture Officer
★ FPSC
Three terminal codons are
Correct Answer: Option B — UAG, UAA, AGA
Detailed Academic Explanation:
UAG, UAA, AGA is the correct answer to “Three terminal codons are”. This question is standard in competitive examination syllabi for Agricultural Biotechnology.
💡Key Conceptual Anchor:Agricultural Biotechnology
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Agricultural Biotechnology — Part 1
Master the next curriculum module with 40 exam-standard MCQs.
In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.