DNA polymorphism forms the basis of ?
TS EMCET-2022 BOTANY MODEL TEST
25. Which of the following is not observed during apoplastic pathway ?
1) The movement is aided by cytoplasmic streaming
2) Apoplast is continuous and does not provide any barrier to water movement
3) Movement of water occurs through intercellular spaces and wall of the cells.
4) The movement does not invo- lve crossing of cell membrane
26. Which one of the following plants shows vexillary aestiva- tion and diadelphous stamens?
1) Allium cepa
2) Solanum nigrum
3) Colchicum autumnale
4) Pisum sativum
27. DNA polymorphism forms the basis of
1) Both genetic mapping and DNA finger printing
2) Translation
3) Genetic mapping
4) DNA finger printing
28. What amount of energy is relea- sed from glucose during lactic acid fermentation?
1) About 10%
2) Less than 7%
3) Approximately 15%
4) More than 18%
29. Identify the correct set of statements :
a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea
b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin
c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves
d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration
e) Subaerially growing stems in grasses and strawberry help in vegetative propagation
Choose the correct answer from the options given below :
1) (b), (c), (d) and (e) Only
2) (a), (b), (d) and (e) Only
3) (b) and (c) Only
4) (a) and (d) Only
30. Which one of the following statements cannot be conne- cted to Predation?
1) Both the interacting species are negatively impacted
2) It is necessitated by nature of maintain the ecological balance
3) It helps in maintaining species diversity in a community
4) It might lead to extinction of a species
31. Given below are two statements :
Statement I :
Cleistogamous flowers are invaria bly autogamous
Statement II :
Cleistogamy is disadvantageous as there is no chance for cross pollination
In the light of the above stateme- nts, choose the correct answer from the options given below :
1) Statement I is correct but Statement II is incorrect
2) Statement I is incorrect but Statement II is correct
3) Booth Statement I and Statement II are correct
4) Both Statement I and Statement II are incorrect
32. Production of Cucumber has increased manifold in recent years. Application of which of the following phytohormones has resulted in this increased yield as the hormone is known to produce female flowers in the plants :
1) Ethylene 2) Cytokinin
3) ABA 4) Gibberellin
33. Match List -I with List – II
List -I List -II
a) Manganese (i) Activates the enzyme catalase
b) Magnesium (ii) Required for pollen germination
c) Boron (iii) Activates enzymes of respiration
d) Iron (iv) Function in splitting of water during photosynthesis
Choose the correct answer from the options given below :
1) (a)-(vi), (b)-(i), (c)-(ii), (d)-(iii)
2) (a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
3) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
4) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
34. Which one of the following never occurs during mitotic cell division?
1) Pairing of homologous chro- mosomes
2) Coiling and condensation of the chromatids
3) Spindle fibres attach to kine- tochores of chromosomes
4) Movement of centrioles to wards opposite poles
35. The gaseous plant growth regu- lator is used in plants to :
1) Help overcome apical dominance
2) Kill dicotyledonous weeds in the fields
3) Speed up the malting process
4) Promote root growth and root hair formation to increase the absorption surface
36. Match the plant with the kind of life cycle it exhibits:
List-I List-II
(a) Spirogyra (i) Dominant diploid sporophyte vascular plant, with highly reduced male or female gametophyte
b) Fern (ii) Dominant haploid free-living gametophyte
c) Funaria (iii) Dominant diploid sporophyte alternating with reduced gametophyte called prothallus
d) Cycas (iv) Dominant haploid leafy gametophyte alternating with partially dependent multicellular sporophyte
Choose the correct answer from the options given below :
1) (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
2) (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
3) (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
4) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
37. Which part of the fruit, labelled in the given figure makes it a false fruit?
1) C → Thalamus
2) D → Seed
3) A → Mesocarp
4) B → Endocarp
38. Which one of the following will accelerate phosphorus cycle?
1) Weathering of rocks
2) Rain fall and storms
3) Burning of fossil fuels
4) Volcanic activity
39. Match List-I with List-II.
List-I List-II
a) Metacentric chromosome (i) Centromere situated close to the end forming one extremely short and one very long arms
b) Acrocentric chromosome ii) Centromere at the terminal end
c) Submetacentric (iii) Centromere in the middle forming two equal arms of chromosomes
d) Telocentric chromosome (iv) Centromere slightly away from the middle forming one shorter arm and one longer arm
Choose the correct answer from the options given below :
1) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
2) (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
3) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)
4) (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
40. The anatomy of springwood shown some peculiar features. Identify the correct set of statements about springwood.
a) It is also called as the earlywood
b) In spring season cambium produces xylem elements with narrow vessels
c) It is lighter in colour
d) The springwood along with autumn wood shown alternate concentric rings forming annual rings
e) It has lower density
Choose the correct answer from the options given below :
1) (a), (b) and (d) Only
2) (c), (d) and (e) Only
3) (a), (b), (d) and (e) Only
4) (a), (c), (d) and (e) Only
41. Given below are two statemen- ts : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Mendel’s law of Independent assortment does not hold good for the genes that are located
closely on the same chromo some.
Reason (R) : Closely located genes assort independently.
In the light of the above state ments, choose the correct answer from the options given below:
1) (A) is correct but (R) is not correct
2) (A) is not correct but (R) is correct
3) Both (A) and (R) are correct and (R) is the correct explanation of (A)
4) Both (A) and (R) are correct but (R) is not the correct explanation of (A)
42. Read the following statements on lipids and find out correct set of statements:
a) Leithin found in the plasma membrane is a glycolipid
b) Saturated fatty acids possess one or more c = c bonds
c) Gingely oil has lower melting point, hence remains as oil in winter
d) Lipids are generally insoluble in water but soluble in some organic solvents
e) When fatty acid is esterified with gloycerol, monoglycerides are formed
Choose the correct answer from the option given below:
1) (c), (d) and (e) only
2) (a), (b) and (d) only
3) (a), (b) and (c) only
4) (a), (d) and (e) only
43. What is the role of large bundle shealth cells found around the vascular bundles in C4 plants?
1) To enable the plant to tolerate high temperature
2) To protect the vascular tissue from high light intensity
3) To provide the site for photo respiratory
4) To increase the number of chloroplast for the operation of Calvin cycle
44. In the following palindromic base sequences of DNA, which one can be cut easily by particular restriction enzyme?
1) 5’CTCAGT3’; 3’GAGTCA5’
2) 5’GTATTC3’; 3’CATAAG5’
3) 5’GATACT3’; 3’CTATGA5’
4) 5’GAATTC3’; 3’CTTAAG5’
45. The entire fleet of buses in Delhi were converted to CNG from diesel. In reference to this, which one of the following statements is false?
1) It is cheaper than diesel
2) It can not be adulterated like diesel
3) CNG burns more efficiently than diesel
4) The same diesel engine is used in CNG buses making the cost conversion low
ANSWER KEY
25) 1 26) 4 27)1 28) 2 29) 1 30) 1 31) 3 32) 1 33) 4 34) 1 35) 4 36) 4 37) 1 38) 1 39) 3 40)4 41)1 42)1 43)4 44)4
45)4 46) 4 45) 4
Sabbidi Ramesh
Lecturer in Botany & Neet faculty,
Govt Junior College,
Banswada-
8179227595.
