Q.71 Binomial nomenclature has NOT yet been adopted for(A) bacteria (B) fungi (C) viruses (D) protozoa The correct answer is (C) viruses. Binomial nomenclature, the two-word naming system (genus + […]
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CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
GATE Life Science 2018 Previous Year Papers with Solutions
Eukaryotic Mitochondrial Genomes Origin from Bacteria
Q.70 Analysis of DNA sequences suggest that eukaryotic mitochondrial genomes primarilyoriginated from(A) fungi (B) protozoa (C) algae (D) bacteria Eukaryotic mitochondrial genomes originated primarily from bacteria, as confirmed by DNA […]
GATE Life Science 2018 Previous Year Papers with Solutions
Eukaryotic Cellular Components in Autophagy Degradation
Q.69 Which of the following eukaryotic cellular components carries out intracellular degradationduring autophagy?(A) Nucleus (B) Golgi bodies (C) Ribosomes (D) Lysosomes Lysosomes carry out intracellular degradation during autophagy in eukaryotic […]
GATE Life Science 2018 Previous Year Papers with Solutions
Oral Polio Vaccine
Q.68 The oral polio vaccine (OPV) consists of(A) live attenuated virus (B) killed virus(C) viral toxin (D) viral capsid subunit Oral Polio Vaccine (OPV) consists of live attenuated virus. This makes […]
GATE Life Science 2018 Previous Year Papers with Solutions
Which Immune System Component Functions as an Opsonin?
Q.67 Which of the following immune system components can function as an opsonin?(A) Antibodies (B) T–cell receptors(C) Histamines (D) Interferons Antibodies are the immune system component that functions as an […]
GATE Life Science 2018 Previous Year Papers with Solutions
David Baltimore’s Virus Classification
Q.66 David Baltimore’s classification of viruses is based on differences in(A) host cell receptors used by viruses(B) the pathways required to synthesize virus mRNA(C) the modes of transmission of viruses(D) […]
GATE Life Science 2018 Previous Year Papers with Solutions
Snapdragon F2 Flower Color Probability
Q.65 Two true–breeding snapdragon (Antirrhinum majus) plants, one with red flowers andanother with white flowers were crossed. The F1 plants were all with pink flowers. Whenthe F1 plants were selfed, […]
GATE Life Science 2018 Previous Year Papers with Solutions
Garden Pea Map Distance
Q.64 In garden pea, dwarf plants with terminal flowers are recessive to tall plants with axialflowers. A true–breeding tall plant with axial flowers was crossed with a true–breedingdwarf plant with […]
GATE Life Science 2018 Previous Year Papers with Solutions
Chemical Defense in Plants
Q.63 Identify the CORRECT combination of statements with respect to chemical defense inplants.P. Pisatin, a phytoalexin produced by Ricinus communis is a constitutive defensecompoundQ. Phaseolus vulgaris produces Phaseolus agglutinin I, […]
![Q.62 Match the plant alkaloids with their uses and source species. Alkaloid Use Source species P. Codeine 1. Analgesic i. Catharanthus roseus Q. Scopolamine 2. Stimulant ii. Coca nitida [*Coca*?] R. Vinblastine 3. Antineoplastic iii. Papaver somniferum S. Vinblastine 4. Anticholinergic iv. Senecio jacobaea Options: (A) P-2, Q-iv, R-1, S-3-ii (B) P-iii, Q-2, R-1, S-3-i (C) P-2, Q-1, R-3, S-4-i (D) P-3, Q-4, R-1, S-2](https://www.letstalkacademy.com/wp-content/uploads/2026/01/slide_62-2.png)
GATE Life Science 2018 Previous Year Papers with Solutions
Plant Alkaloids Matching Uses and Sources
Q.62 Match the plant alkaloids with their uses and source species. Alkaloid Use Source species P. Codeine 1. Analgesic i. Catharanthus roseus Q. Scopolamine 2. Stimulant ii. Coca nitida [*Coca*?] […]
