

MCQOPTIONS
This section includes 49 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
1. |
One of the important consequences of geographical isolation is: |
A. | Random creation of new species |
B. | No change in the isolated fauna |
C. | Preventing Speciation |
D. | Speciation through reproductive isolation |
Answer» E. | |
2. |
Which one of the following statements about viruses is correct? |
A. | viruses possess their own metabolic system |
B. | all viruses contain both RNA and DNA |
C. | viruses are obligate parasites |
D. | nucleic acid of viruses is known as capsid |
Answer» D. nucleic acid of viruses is known as capsid | |
3. |
Tobacco mosaic virus is a tubular filament of size |
A. | 300 x 10 nm |
B. | 300 x 5 nm |
C. | 300 x 20 nm |
D. | 700 x 30 nm |
Answer» D. 700 x 30 nm | |
4. |
Viruses are no more “alive” than isolated chromosomes because |
A. | they require both RNA and DNA |
B. | they both need food molecules |
C. | they both require oxygen for respiration |
D. | both require the environment of a cell to replicate |
Answer» E. | |
5. |
Species are considered as |
A. | real basic units of classification |
B. | the lowest units of classification |
C. | artificial concept of human mind which cannot be defined in absolute terms |
D. | real units of classification devised by taxonomists |
Answer» B. the lowest units of classification | |
6. |
Phenetic classification is based on |
A. | the ancestral lineage of existing organisms |
B. | observable characteristics of existing organisms |
C. | dendrograms based on DNA characteristics |
D. | sexual characteristics |
Answer» C. dendrograms based on DNA characteristics | |
7. |
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used? |
A. | plantae |
B. | fungi |
C. | protista |
D. | monera |
Answer» E. | |
8. |
Biosystematics aims at |
A. | the classification of organisms based on broad morphological characters |
B. | delimiting various taxa of organisms and establishing their relationships |
C. | the classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies |
D. | identification and arrangement of organisms on the basis of their cytological characteristics |
Answer» D. identification and arrangement of organisms on the basis of their cytological characteristics | |
9. |
In five kingdom system, the main basis of classification of |
A. | structure of nucleus |
B. | mode of nutrition |
C. | structure of cell wall |
D. | asexual reproduction. |
Answer» C. structure of cell wall | |
10. |
Cauliflower mosaic virus contains |
A. | ss RNA |
B. | ds RNA |
C. | ds DNA |
D. | ss DNA. |
Answer» D. ss DNA. | |
11. |
Which of the following is less general in characters as compared to genus? |
A. | species |
B. | division |
C. | class |
D. | family |
Answer» B. division | |
12. |
A system of classification, in which a large number of traits are considered, is |
A. | natural system |
B. | phylogenetic system |
C. | artificial system |
D. | synthetic system. |
Answer» B. phylogenetic system | |
13. |
The book ‘Genera Plant arum’ was written by |
A. | Engler & Prantl |
B. | Bentham & Hooker |
C. | Bessey |
D. | Hutchinson. |
Answer» C. Bessey | |
14. |
What is the genetic material in influenza virus? |
A. | double helical DNA |
B. | RNA |
C. | single helix DNA |
D. | none of these. |
Answer» C. single helix DNA | |
15. |
‘Taxon’ is the unit of a group of |
A. | order |
B. | taxonomy |
C. | species |
D. | genes. |
Answer» C. species | |
16. |
BGA (blue green algae) is included in which of the following groups? |
A. | bryophytes |
B. | prokaryotes |
C. | protista |
D. | fungi. |
Answer» C. protista | |
17. |
The tailed bacteriophages are |
A. | motile on surface of bacteria |
B. | non-motile |
C. | motile on surface of plant leaves |
D. | actively motile in water. |
Answer» B. non-motile | |
18. |
Tobacco mosaic virus (TMV) genes are |
A. | single stranded RNA |
B. | double stranded DNA |
C. | proteinaceous |
D. | double stranded RNA. |
Answer» B. double stranded DNA | |
19. |
Phylogenetic classification is one which is basea |
A. | overall similarities |
B. | utilitarian system |
C. | habits of plants |
D. | common evolutionary descent. |
Answer» E. | |
20. |
The protists have |
A. | only free nucleic acid aggregates |
B. | membrane bound nucleo proteins lying embedded in the cytoplasm |
C. | gene containing nucleoproteins condensed together in loose mass |
D. | nucleoprotein in direct contact with the rest of the cell substance. |
Answer» C. gene containing nucleoproteins condensed together in loose mass | |
21. |
Linnaeus is credited with |
A. | binomial nomenclature |
B. | theory of biogenesis |
C. | discovery of microscope |
D. | discovery of blood circulation. |
Answer» B. theory of biogenesis | |
22. |
Schizont stage of Plasmodium occurs in human cells |
A. | erythrocytes |
B. | liver cells |
C. | erythrocytes and liver cells |
D. | erythrocytes, liver cells and spleen cells. |
Answer» D. erythrocytes, liver cells and spleen cells. | |
23. |
If all ponds and puddles arc destroyed, the organism likely to be destroyed is |
A. | Leishniania |
B. | Trypanosoma |
C. | A scar is |
D. | Plasmodium. |
Answer» E. | |
24. |
Sequence of taxonomic categories is |
A. | class-phylum-tribe-order family- genus species |
B. | di vision-class-family-tribe-order-genus- species |
C. | division-class-order-family-tribe-genus- species |
D. | phylum-order-class-tribe-family-genus- species |
Answer» D. phylum-order-class-tribe-family-genus- species | |
25. |
The term phylum was given by |
A. | cuvier |
B. | haeckel |
C. | theophrastus |
D. | linnaeus. |
Answer» B. haeckel | |
26. |
The part of life cycle of malaria parasite Plasmodium vivax, that is passed in female Anopheles is |
A. | sexual cycle |
B. | pre-crythrocytic schizogony |
C. | exoerythrocytic schizogony |
D. | post-erythrocytic schizogony. |
Answer» B. pre-crythrocytic schizogony | |
27. |
An important criterion for modern day classification is |
A. | resemblances in morphology |
B. | anatomical and physiological traits |
C. | breeding habits |
D. | presence or absence of notochord. |
Answer» C. breeding habits | |
28. |
A group of plu.nts or animals with siuilar traits of any rank is |
A. | species |
B. | gcr.us |
C. | order |
D. | taxon. |
Answer» E. | |
29. |
In Amoeba and Paramecium osmoregulation occurs through |
A. | pseudopodia |
B. | nucleus |
C. | contractile vacuole |
D. | general surface |
Answer» D. general surface | |
30. |
African sleeping sickness is due to |
A. | Plasmodium vivax transmitted by Tsetse fly |
B. | Trypanosoma lewsii transmitted by Bed Bug |
C. | Trypanosoma gambiense transmitted by Glossina palpalis |
D. | Entamoeba gingivalis spread by Housefly. |
Answer» D. Entamoeba gingivalis spread by Housefly. | |
31. |
Malignant tertian malaria parasite, belongs to class |
A. | Plasmodium falciparum |
B. | P. vivax |
C. | P. ovale |
D. | P. malariae. |
Answer» B. P. vivax | |
32. |
Who discovered Plasmodium in R.B.C. of human beings? |
A. | Ronald Ross |
B. | Mendel |
C. | Laveran |
D. | Stephens. |
Answer» D. Stephens. | |
33. |
Basic unit or smallest taxon of taxonomy/ classification is |
A. | species |
B. | kingdom |
C. | family |
D. | variety. |
Answer» B. kingdom | |
34. |
Linnaeus evolved a system of nomenclature called |
A. | mononomial |
B. | vernacular |
C. | binomial |
D. | polynomial |
Answer» D. polynomial | |
35. |
Plasmodium, the malaria parasite, belongs to class |
A. | sarcodina |
B. | ciliata |
C. | sporozoa |
D. | dinophyceae |
Answer» D. dinophyceae | |
36. |
Amoebiasis is prevented by |
A. | eating balanced food |
B. | eating plenty of fruits |
C. | drinking boiled water |
D. | using mosquito nets. |
Answer» D. using mosquito nets. | |
37. |
Which is true about Trypanosoma? |
A. | polymorphic |
B. | monogenetic |
C. | facultative parasite |
D. | non-pathogenic. |
Answer» B. monogenetic | |
38. |
Genetic information in Paramecium is contained in |
A. | micronucleus |
B. | macronucleus |
C. | both micronucleus and macronucleus |
D. | mitochondria. |
Answer» B. macronucleus | |
39. |
The infective stage of malaria parasite, Plasmodium that enters human body is |
A. | merozoite |
B. | sporozoite |
C. | trophozoite |
D. | minuta form |
Answer» C. trophozoite | |
40. |
System of classification used by Linnaeus was |
A. | natural system |
B. | artificial system |
C. | phylogenetic system |
D. | asexual system |
Answer» C. phylogenetic system | |
41. |
Artificial system of classification was first used by |
A. | Linnaeus |
B. | De Candolle |
C. | Pliny the Edkr |
D. | Bentham and Hooker |
Answer» B. De Candolle | |
42. |
A bite of Tse-tse fly may pass to humans |
A. | Leishmania donovani |
B. | Trypanosoma gambiense |
C. | Entamoeba histolytica |
D. | Plasmodium vivax. |
Answer» C. Entamoeba histolytica | |
43. |
Malaria fever coincides with liberation of |
A. | cryptomerozoties |
B. | metacryptomerozoites |
C. | merozoites |
D. | trophozoites. |
Answer» C. merozoites | |
44. |
Trypanosoma belongs to class |
A. | sarcodina |
B. | zoofiagellata |
C. | ciliata |
D. | sporozoa. |
Answer» C. ciliata | |
45. |
The vector for sleeping sickness is |
A. | housefly |
B. | tsetse fly |
C. | sandfly |
D. | fruit fly. |
Answer» C. sandfly | |
46. |
The causal organism for African sleeping sickness i is |
A. | Trypanosoma cruzi |
B. | T. rhodesiense |
C. | T. tangela |
D. | T. gambiense. |
Answer» E. | |
47. |
Classification given by Bentham and Hooker is |
A. | artificial |
B. | natural J U. |
C. | phylogenetic |
D. | numerical |
Answer» C. phylogenetic | |
48. |
The term “New Systematics” was introduced by |
A. | Bentham and Hooker |
B. | Linnaeus |
C. | Julian Huxley |
D. | A.P. de Candolle. |
Answer» D. A.P. de Candolle. | |
49. |
Static concept of species was put forward by |
A. | de Candolle |
B. | Linnaeus |
C. | Theophrastus |
D. | Darwin. |
Answer» D. Darwin. | |