R4RIN
MCQS
NEET Test Series-2021 to 2022 MCQ Quiz Hub
NEET Biology MCQS Mock Test Paper 19
Choose a topic to test your knowledge and improve your NEET Test Series-2021 to 2022 skills
1. ‘Curled toe paralysis’ in chicks is a symptom caused due to the deficiency of
Phosphorous
Sulphur
Niacin
Riboflavin
2. The fleshy evident mass found between the forelimbs of cows is known as
Rump
Flank
Brisket
Dewlap
3. Trade name of genetically engineered insulin is
Beta insulin
Humilin
Anulin
Gilbert’s insulin
4. What is the consequence of a change in the genetic diversity
results in loss of biological diversity
leads to an increase in the population
results in loss of human species only
causes pollution
5. Increasing genetic diversity interprets daughter chromosome contains genes from
None of the parents
Single parent
Both parents
synthesis of own genes
6. A phenomenon occurring during prophase I of meiosis is
Mutation
Synapsis
Translation
Crossing over
7. Crossing over refers to
thickening of chromosome
change in chromosome
Mutation
exchange of segments between sections of chromosome
8. State the way in which increasing species diversity can affect the ecosystem
it does not increase the efficiency and productivity of an ecosystem
it increases only the efficiency and not the productivity of an ecosystem
it increases the productivity and efficiency of an ecosystem
it only increases the productivity of an ecosystem
9. Why does genetic diversity have a major role in the adaptability and survival of a species?
any population should remain the same regardless of the outer change in the environment
Ability of population to adapt to changing environment
Environment remains unchanged even if the population changes
Population inability to adapt to changing environment
10. This biodiversity boosts the oxygen availability
Ecosystem diversity
Species diversity
Genetic diversity
Cell diversity
11. A country with several different habitat types is said to have a high degree of
Genetic diversity
Species diversity
Biodiversity
Habitat diversity
12. This is the importance of species diversity
species interacts with its environment and hence performs some functions
species never interact with the environment
species minimize interaction with its environment and hence performs certain functions
species does not perform functions though it interacts with the environment
13. Name the non-membrane bound organelle exclusively found only in animal cell
Sphaerosome
Glyoxisome
Centriole
Peroxisome
14. If the centromere is located at the proximity of the end of a chromosome; it is known as
Acrocentric
Metacentric
Telocentric
Submetacentric
15. Flagella; centrioles; cilia and basal bodies possess evident similar structural elements and arrangements. This can lead to this probable hypothesis
Loss of basal bodies should lead to loss of all cilia; flagella; and centrioles
Disruption of one of these types of the structure should necessarily disrupt each of the others as well
Natural selection for motility must select for microtubular arrays in circular patterns
Motor proteins such as dynein must have evolved before any of these four kinds of structure
16. In the plasma membrane of a few animals; the presence of cholesterol
makes the membrane less flexible permitting it to sustain greater pressure from within the cell
enables the membrane to stay fluid more easily when the temperature of the cell drops
enables the animal to remove hydrogen atoms from saturated phospholipids
enables the animal to add hydrogen atoms to unsaturated phospholipids
17. Component of plant cell absent in animal cell is
Cytoplasm
Cell membrane
Cell wall
Nucleus
18. The association of more than one ribosome with a single molecule of mRNA complex is known as
Polysome
Polysome
Polymer
Polysaccharide
19. This cell organelle is responsible to extract energy from carbohydrates to form ATP
Mitochondrion
Lysosome
Ribosome
Chloroplast
20. Balbiani rings are the sites of
RNA and protein synthesis
Lipid synthesis
Nucleotide synthesis
Polysaccharide synthesis
21. This organism is not an example of eukaryotic cells
Euglena viridis
Escherichia coli
Amoeba proteus
Paramoecium caudatum
22. The main site of different types of cellular activities is
Mitochondrion
Nucleus
Cytoplasm
Plasma membrane
23. The protistan genome has
Free nucleic acid aggregates
Membrane-bound nucleoproteins embedded in the cytoplasm
Gene containing nucleoproteins condensed together in a loose mass
nucleoprotein in direct contact with cell substance
24. The protist that reproduces both by binary fission and conjugation is
Amoeba
Euglena
Paramecium
Monocystis
25. A few protists possess structures to regulate their water content. They are
membranes
Chromatophores
Nuclei
Contractile vacuoles
26. Protists include
Bacteria; fungi; algae and Bryophyta
Protozoa; algae and fungi
Vascular plants; slime moulds; and fungi
Bacteria; algae; protozoa; and Bryophyta
27. Pick the wrong statement
Diatoms are primarily produced in the oceans
Diatoms are microscopic and float passively in the water
Walls of diatoms are destructible easily
Diatomaceous earth is formed by the cell walls of diatoms
28. Micronucleus and macronucleus are the characteristic features of
Balantidium and Hydra
Vorticella and Nyctotherus
Opalina and Nyctotherus
Vorticella and Paramecium
29. The cell walls form two thin overlapping shells in which group of organisms such that they fit together
Euglenoids
Dinoflagellates
Slime moulds
Chrysophytes
30. Whorling whips are named so because of
Type of nucleus
Mode of movement
Mode of reproduction
Mode of nutrition
31. Red tide is caused by
Noctiluca
Ceratium
Gonyaulax
All of the above
32. In Dinoflagellates; the reserve food is
Fucoxanthin
Starch
Alginic acid
Mannitol
33. Find the true statement about benzene
it possesses two types of C-C bonds
three isomeric forms are possible in a monosubstituted benzene
it readily undergoes addition due to unsaturation
pi-electrons are delocalised in the ring
34. Nitration of benzene is carried out by which of the following reactive species?
NO2+
NO2–
HNO3
NO3
35. In Chlorination of benzene; which of the following acts as an electrophile?
Cl+
Cl–
Cl
FeCl3
36. Arenes do not show
Delocalisation of pi-electrons
Greater stability
Resonance
Electrophilic additions
37. Which of the following groups are most likely to be o; p directing?
Deactivating
Neutral
Activating
All of the above
38. The product formed predominantly in the reaction of toluene with chlorine in the presence of FeCl3 is
m-chlorotoluene
o- and p-chlorotoluene
Benzoyl chloride
Benzyl chloride
39. Which of the following will not undergo Friedel-Craft’s reaction readily?
Toluene
Xylene
Cumene
Nitrobenzene
40. Which of the following is an edible modified root?
Potato
Sweet potato
Groundnut
both (a) and (b)
41. Clinging roots are found in
Podostemon
Orchid
Trapa
Screwpine
42. Where do you find velamen?
in roots of screwpine
in aerial roots of orchids
in leaves of Ficus
in aerial and terrestrial roots of orchids
43. Which of the following has buttress roots?
Banyan
Sorghum
Pandanus
Terminalia
44. Roots of which of the following plants contains an oxidising agent?
Soybean
Radish
Mustard
Carrot
45. Roots developing from a part of the plant other than radicle are called
Fibrous
Adventitious
Epicaulous
Epiphyllous
46. Which of the following plants has stilt roots?
Bryophyllum
Radish
Pandanus
Mango
47. Assimilatory or photosynthetic roots are present in
Tinospora
Trapa
Taeniophyllum
All of the above
48. Which of the following is a geocarpic fruit?
Garlic
Onion
Potato
Peanut
49. Which of the following is homologous with sweet potato?
Potato
Colocasia
Turnip
Ginger
50. In Angiosperms; the functional megaspore gives rise to
ovule
embryo
embryo sac
endosperm
Submit