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MCQ on Bioinformatics. We covered all the MCQ on Bioinformatics in this post for free so that you can practice well for the exam.
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MCQ on Bioinformatics for NEET Students
Choose the statement that is incorrect regarding biocontrol agents:
(A) They have no harmful effects on cultivated plants.
(B) They promote the usage of chemical pesticides.
(C) They are valuable for managing sensitive ecosystems.
(D) They do not harm non-target pest species.
Option b – They promote the usage of chemical pesticides.
From the following statements (i–iv), select the combination that includes only the correct ones:
i. Spirulina, being unicellular, can generate food with high protein, vitamin, and mineral content.
ii. Methylophilus methylotrophus can yield more protein per unit weight compared to cows.
iii. The common button mushroom is an excellent source of vitamin C.
iv. A high-calcium rice variety has been developed.
(A) Statements (iii) and (iv)
(B) Statements (i), (iii) and (iv)
(C) Statements (ii), (iii) and (iv)
(D) Statements (i) and (ii)
Option d – Statements (i) and (ii)
Identify the incorrect statement about Bt cotton:
(A) Loss of yield due to Bacillus thuringiensis infection is reduced.
(B) It minimizes crop damage from insect pests.
(C) The need for chemical insecticides is lowered.
(D) The cotton produced is of superior quality.
Option a – Loss of yield due to Bacillus thuringiensis infection is reduced.
What is commonly used in scrubbers to mix with exhaust gases?
(A) Methane spray
(B) Water or lime spray
(C) Lime and methane spray
(D) Methane and water spray
Option b – Water or lime spray
In a taxonomic key, what is the term for contrasting characteristics used to differentiate organisms?
(A) Alternate
(B) Lead
(C) Couplet
(D) Doublet
Option c – Couplet
Read the following statements and determine how many are correct:
i. Equisetum retains the female gametophyte on the parent plant.
ii. The male gametophyte in Ginkgo is not free-living.
iii. Riccia’s sporophyte is more advanced than Polytrichum’s.
iv. Volvox undergoes isogamous sexual reproduction.
v. Slime mould spores lack cell walls.
(A) Two
(B) Three
(C) Four
(D) One
Option a – Two
What kind of pollination occurs in Vallisneria?
(A) Male flowers travel with water currents to female flowers on the water surface.
(B) Pollination takes place underwater.
(C) Flowers rise above water and are pollinated by insects.
(D) Flowers rise above water and wind carries the pollen.
Option a – Male flowers travel with water currents to female flowers on the water surface.
Which characteristic is not typically observed in cancer cells?
(A) They compete with healthy cells for nutrients.
(B) They spread beyond their original tissue.
(C) They divide uncontrollably.
(D) They exhibit contact inhibition.
Option d – They exhibit contact inhibition.
In snapdragon, the appearance of pink flowers in the F₂ generation, despite neither parent showing this trait, is due to:
(A) Environmental influence causing the color change.
(B) Pink being a hidden trait expressed in the F₂ generation.
(C) A mutation occurring in the F₁ generation.
(D) Incomplete dominance of the flower color gene.
Option d – Incomplete dominance of the flower color gene.
Regarding DNA, which of the following is correct?
(A) The adenine-thymine ratio differs among species.
(B) DNA strands run in opposite directions—one 5′ to 3′, the other 3′ to 5′.
(C) Purines and pyrimidines are not always balanced.
(D) Both strands run parallel from 5′ to 3′.
Option b – DNA strands run in opposite directions—one 5′ to 3′, the other 3′ to 5′.
What is typically used to cause mutations in crop breeding?
(A) X-rays
(B) UV radiation at 260 nm
(C) Gamma rays from cobalt-60
(D) Alpha particles
Option c – Gamma rays from cobalt-60
What does the active form of Entamoeba histolytica consume?
(A) Food in the intestines
(B) Only blood
(C) Red blood cells and layers of the colon
(D) Inner layers of the colon alone
Option c – Red blood cells and layers of the colon
Which molecule is a common product during the breakdown of fats, carbohydrates, and proteins in cellular respiration?
(A) Fructose-1,6-bisphosphate
(B) Pyruvate
(C) Acetyl-CoA
(D) Glucose-6-phosphate
Option c – Acetyl-CoA
During germination, stored food is mobilized with the help of:
(A) Abscisic acid (ABA)
(B) Gibberellin
(C) Ethylene
(D) Cytokinin
Option b – Gibberellin
Which microorganism is commonly used for producing citric acid on an industrial scale?
(A) Aspergillus niger
(B) Rhizopus nigricans
(C) Lactobacillus bulgaris
(D) Penicillium citrinum
Option a – Aspergillus niger
Which genetic disorder is characterized by the presence of three sex chromosomes (XXY) in each cell?
(A) Turner syndrome
(B) Thalassemia
(C) Klinefelter syndrome
(D) Phenylketonuria
Option c – Klinefelter syndrome
A molecule serving as genetic material should possess all the following features except:
(A) Allow gradual genetic variation necessary for evolution
(B) Express traits following Mendelian patterns
(C) Be capable of self-replication
(D) Be chemically and structurally unstable
Option d – Be chemically and structurally unstable
Identify the incorrect statement about biodiversity:
(A) Biodiversity tends to increase from mountain tops to sea level.
(B) Replacing traditional crops with high-yield varieties reduces genetic diversity.
(C) Regions rich in species with few threatened organisms are called biodiversity hotspots.
(D) Species richness reduces from equatorial to polar regions.
Option c – Regions rich in species with few threatened organisms are called biodiversity hotspots.
How many meiotic divisions are necessary to produce 100 wheat grains?
(A) 100
(B) 75
(C) 125
(D) 50
Option c – 125
Choose the incorrect statement related to hybrid seeds:
(A) Producing hybrid seeds is an expensive process.
(B) New hybrid seeds must be generated annually.
(C) Hybrid seeds may be unaffordable for many farmers.
(D) Seeds saved from hybrid plants continue to exhibit hybrid traits even after years.
Option d – Seeds saved from hybrid plants continue to exhibit hybrid traits even after years.
We covered all the MCQ on bioinformatics above in this post for free so that you can practice well for the exam.
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