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Biotechnology

Description: Biotechnology MicrobiologyBiochemistryMicrobial Diversity and Characteristic Features; VirusesProcess Biotechnology
Number of Questions: 20
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Tags: Biotechnology Microbiology Biochemistry Microbial Diversity and Characteristic Features; Viruses Process Biotechnology
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Which of the following diseases is caused by ciliated protozoan?

  1. Giardiasis

  2. Balantidiasis

  3. Diphtheria

  4. Fasciolosis

  5. Hepatitis A

Show answer
Correct Option: B
Explanation:

Balantidiasis is a protozoan infection caused by Balantidium coli. 

Which of the following "virus and its genetic material" combinations is incorrect?

  1. Herpes virus : dsDNA

  2. Adenovirus : dsDNA

  3. Tobacco mosaic virus : dsRNA

  4. Rhabdovirus : ssRNA

  5. Retrovirus : ssRNA

Show answer
Correct Option: C
Explanation:

Yes, it is the correct answer. 

Which of the following is an automatic server for predicting transmembrane helices and topology of proteins?

  1. HMMTOP

  2. I-TASSER

  3. RaptorX

  4. HHsearch

  5. Abalone

Show answer
Correct Option: A
Explanation:

HMMTOP is an automatic server for predicting transmembrane helices and topology of proteins.

Which of the following hormones is derived from tryptophan?

  1. Cortisol

  2. Epinephrine

  3. Oxytocin

  4. Testosterone

  5. Serotonin

Show answer
Correct Option: E
Explanation:

Yes, it is the correct answer. 

Which of the following hormones are secreted by pars digitalis region of pituitary gland?

  1. MSH
  2. TSH
  3. ACTH
  4. Vasopressin

  1. 1 and 2

  2. 1 and 4

  3. 2 and 3

  4. 2 and 4

  5. 3 and 4

Show answer
Correct Option: C
Explanation:

Yes, it is the correct answer.

Which of the following is an iron-containing enzyme?

  1. Phosphoglucomutase

  2. Dopamine hydroxylase

  3. Catechol dioxygenase

  4. Tyrosinase

  5. Inorganic pyrophosphatase

Show answer
Correct Option: C
Explanation:

Catechol dioxygenase is an iron-containing enzyme.

Which of the following enzymes acts on a sulphur group of donors?

  1. Superoxide dismutase

  2. Glutathione reductase

  3. Catalase

  4. Nitrate reductase

  5. Cytochrome c oxidase

Show answer
Correct Option: B
Explanation:

Glutathione reductase acts on a sulphur group of donors.

Quinine is a very commonly used anti-malarial drug. It is obtained from

  1. Cinchona ledgeriana

  2. Rauwolfia serpentina

  3. Camellia sinensis

  4. Atropa belladonna

  5. Digitalis purpurea

Show answer
Correct Option: A
Explanation:

Yes, it is the correct answer. 

Which of the following enzymes act on the CH-OH group of donors?

  1. NADH dehydrogenase
  2. Pyruvate dehydrogenase
  3. Malate dehydrogenase
  4. Glycerol dehydrogenase

  1. 1 and 2

  2. 1 and 4

  3. 2 and 3

  4. 2 and 4

  5. 3 and 4

Show answer
Correct Option: E
Explanation:

Yes, it is the correct answer.

Which of the following is a pair of bacterial diseases?

  1. Malaria and pneumonia

  2. Ateliosis and meningitis

  3. Clonorchiasis and tetanus

  4. Meningitis and tetanus

  5. Pneumonia and clonorchiasis

Show answer
Correct Option: D
Explanation:

Yes, it is the correct answer.

Which of the following are X-linked hereditary disorders?

  1. Colour blindness
  2. Total colour blindness
  3. Haemophilia
  4. Hypertrichosis

  1. 1 and 2

  2. 1 and 3

  3. 2 and 3

  4. 2 and 4

  5. 3 and 4

Show answer
Correct Option: B
Explanation:

Yes, it is the correct answer.

Which of the following microbes is an example of psychrotrophs?

  1. Escherichia coli

  2. Geobacillus stearothermophilus

  3. Bacillus psychrophilus

  4. Pseudomonas fluorescens

  5. Thermus aquaticus

Show answer
Correct Option: D
Explanation:

Correct option

Which of the following pairs represents hydrolases only?

  1. Acetate kinase and alanine deaminase

  2. Glucose-phosphate isomerase and alanine racemase

  3. Oxalate decarboxylase and isocitrate lyase

  4. Lipase and sucrase

  5. Cytochrome oxidase and lactate dehydrogenase

Show answer
Correct Option: D
Explanation:

Yes, it is the correst answer.

Which of the following microbes is an example of microaerophiles?

  1. Streptococcus pyogenes

  2. Treponema pallidum

  3. Micrococcus luteus

  4. Saccharomyces cerevisiae

  5. All of the above

Show answer
Correct Option: B
Explanation:

Correct option

Which of the following is a set of nutritionally essential amino acids only?

  1. Alanine, Phenylalanine, Tyrosine, Tryptophan

  2. Glycine, Alalanine, Serine, Tyrosine

  3. Histidine, Tryptophan, Glycine, Alalanine

  4. Tyrosine, Histidine, Alalanine, Methionine

  5. Histidine, Tryptophan, Methionine, Phenylalanine

Show answer
Correct Option: E
Explanation:

Yes, it is the correct answer.

Which of the following sets represents fruticose lichens only?

  1. Usnea, Cladonia, Alectoria

  2. Lecanora, Haematomma, Cladonia

  3. Parmelia, Collema, Peltigera

  4. Alectoria, Lecanora, Parmelia

  5. Cladonia, Collema, Usnea

Show answer
Correct Option: A
Explanation:

Fruticose lichens are seen on the branches of trees hanging down. They are cylindrical, well-branched and pendent with hair-like outgrowths. They remain attached to the substratum by basal mucilagenous disc. Examples: Usnea, Cladonia and Alectoria.

Which of the following diseases is transmitted by sand fly?

  1. Chaga’s disease

  2. Diorrhea

  3. Kala azar

  4. African sleeping sickness

  5. Malaria

Show answer
Correct Option: C
Explanation:

Kala azar is transmitted by sand fly.

Which of the following sets of microbes represents acidophiles only?

  1. Sulfolobus, Picrophilus, Ferroplasma, Acontium

  2. Escherichia, Euglena, Paramecium, Natronobacterium

  3. Euglena, Picrophilus, Ferroplasma, Acontium

  4. Paramecium, Natronobacterium, Picrophilus, Ferroplasma

  5. Natronobacterium, Paramecium, Euglena, Paramecium

Show answer
Correct Option: A
Explanation:

Yes, it is the correct answer.

Which of the following matches of disease : causative agent is incorrect?

  1. Downy mildew of crucifers : Peronospora parasitica

  2. Black rust of wheat : Puccinia graminis

  3. Loose smut of wheat : Ustilago tritici

  4. Early blight of potato : Phytophthora infestans

  5. Red rot of sugarcane : Colletotricum falcatum

Show answer
Correct Option: D
Explanation:

Early blight of potato is caused by Alternaria solani. Late blight of potato is caused by Phytophthora infestans.

Which of the following nucleotides is not found in DNA?

  1. Adenosine monophosphate

  2. Guanosine monophosphate

  3. Cytidine monophosphate

  4. Uridine monophosphate

  5. Thymidine monophosphate

Show answer
Correct Option: D
Explanation:

Uridine monophosphate is not found in DNA. It is found only in RNA.

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