GATE XL topic:life-sciences PYQs & Answers — Page 57

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topic:life-sciences

Questions 561–570 of 1235. Imported answers require independent review unless marked reviewed.

Topic practice 1235 questionsPage 57 of 124

Which of the following are present in Gram-negative bacteria?

Your answerSelect all correct options. You can choose more than one.

Lipopolysaccharide

Teichoic acid

Periplasm

Endotoxin

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Nonsense suppressor mutation is found in ________________.

Your answerChoose one option.

rRNA

tRNA

start codon of mRNA

stop codon of mRNA

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Choose the correct match for structural components of bacteria to their function.

Your answerChoose one option.

(P)-(ii), (Q)-(iii), (R)-(i), (S)-(iv)

(P)-(ii), (Q)-(i), (R)-(iii), (S)-(iv)

(P)-(ii), (Q)-(i), (R)-(iv), (S)-(iii)

(P)-(i), (Q)-(iv), (R)-(iii), (S)-(ii)

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Match the pathogen with the appropriate disease.

Your answerChoose one option.

(P)-(ii), (Q)-(iii), (R)-(i), (S)-(iv)

(P)-(ii), (Q)-(i), (R)-(iii), (S)-(iv)

(P)-(i), (Q)-(iv), (R)-(ii), (S)-(iii)

(P)-(i), (Q)-(iv), (R)-(iii), (S)-(ii)

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Match the correct mode of cell division with respective bacteria.

Bacteria (P) Streptomyces species (Q) Rhodopseudomonas acidophila (R) Bacillus subtilis (S) Nocardia species

Mode of cell division

Your answerChoose one option.

(P)-(ii), (Q)-(iii), (R)-(i), (S)-(iv)

(P)-(ii), (Q)-(i), (R)-(iii), (S)-(iv)

(P)-(iv), (Q)-(ii), (R)-(i), (S)-(iii)

(P)-(i), (Q)-(iv), (R)-(iii), (S)-(ii)

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The correct sequence of overall biochemical reaction which expresses the process of denitrification is ____

Your answerChoose one option.

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Which of the following diseases are caused by family of DNA viruses?

Your answerSelect all correct options. You can choose more than one.

Hepatitis B

Smallpox

Influenza

Rabies

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Which of the following Gram-positive cocci are found in biofilm of dental plaque?

Your answerSelect all correct options. You can choose more than one.

Gonococus

Streptococus mutans

Streptococus sobrinus

Fusobacterium species

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Which of the following statements are TRUE for archaea?

Your answerSelect all correct options. You can choose more than one.

Cell wall in archaea contains muramic acid and D-amino acid

N-Formylmethionine is the first amino acid to initiate new polypeptide chain synthesis in archaea

Methionine is the first amino acid used during protein synthesis in archaea

Membrane of archaea contains phytanyl rather than fatty acids

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If the plasmid given below is digested with restriction enzymes HindIII and EcoRI, considering complete digestion, how many DNA fragments will be released?

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GATE XL topic:life-sciences PYQs

Question 73

Question 74

Question 75

Question 76

Question 77

Question 78

Question 79

Question 80

Question 81

Question 82