Life Sciences
GATE XL format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 671–680 of 812. Imported answers require independent review unless marked reviewed.
Question 3
Open questionXL-SMCQ1 markNeeds review
The oral polio vaccine (OPV) consists of
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Which of the following eukaryotic cellular components carries out intracellular degradation during autophagy?
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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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Which of the following is NOT an accepted method for sterilization?
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The primary product of nitrogen fixation is
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In humans, the key stages in the life cycle of malarial parasites occur in
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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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Open questionXL-SMCQ2 marksNeeds review
Match the antimicrobial agents in group I with their category/mode of action in group II.
Group I: (i) Fluoroquinolones; (ii) Amphotericin B; (iii) Tetracycline; (iv) Amoxicillin.
Group II: (p) beta lactam antimicrobial; (q) inhibition of protein synthesis; (r) inhibition of nucleic acid synthesis; (s) antifungal agent
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Open questionXL-SMCQ2 marksNeeds review
Match the microorganisms to their predominant modes of transmission.
Microorganism: (i) Bordetella pertusis; (ii) Denge virus; (iii) Entamoeba histolytica; (iv) Hepatitis B virus.
Mode of Transmission: (p) Vector-borne; (q) Blood-borne; (r) Droplet infection; (s) Contaminated food
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