Life Sciences
GATE XL Microbial Taxonomy and Diversity PYQs
Build your understanding with focused practice from past exam papers.
Questions 11–20 of 20. Imported answers require independent review unless marked reviewed.
Question 3
Open questionXL-SMCQ1 markNeeds review
Choose the correct taxonomical hierarchy among the following:
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The highly contagious viral disease measles is caused by a
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Open questionXL-SMCQ2 marksNeeds review
Among the following characteristics listed below, select those that are the most appropriate for archaebacteria.
(i) Peptidoglycan containing muramic acid and D-amino acids are present in cell wall
(ii) Long chain branched alcohols (phytanols) bound to glycerol by ether linkages are found in the lipids of cytoplasmic membrane
(iii) First amino acid to initiate new polypeptide chain is N-Formylmethionine
(iv) Translation process is sensitive to the action of diphtheria toxin
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When grouping bacteria using numerical taxonomy approach, many characteristics are determined for each strain. If all characteristics are same, then the % similarity is 100. When comparing two bacterial strains, if 72 characteristics are the same and 44 characteristics are different, the % similarity (round off to 2 decimal places) between the two strains is ______.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 1
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David Baltimore’s classification of viruses is based on differences in
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Analysis of DNA sequences suggest that eukaryotic mitochondrial genomes primarily originated from
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Binomial nomenclature has NOT yet been adopted for
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Open questionXL-SMCQ2 marksNeeds review
Accumulating evidence suggest that Domain Archaea is more closely related to Domain Eukarya than to Domain Bacteria. Which of the following properties are shared between eukaryotes and archaea?
(i) Protein biogenesis
(ii) Presence of sterol containing membranes
(iii) Ribosomal subunit structures
(iv) Adaptation to extreme environmental conditions
(v) Fatty acids with ester linkages in the cell membrane
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Unicellular eukaryotic organisms belong to which one of the following kingdoms of classification?
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The inner mitochondrial membrane comprises of a series of folds known as
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