CSS Agriculture Questions & Answers - Part-1 - Set 13

1)   The mechanism of male sterility in self-pollinated crops can be successfully utilised to obtain:

a. Selfed seed
b. Mutated seed without radiation treatment
c. Hybrid seed without emasculation
d. Sterile seed
Answer  Explanation 

ANSWER: Hybrid seed without emasculation

Explanation:
No explanation is available for this question!


2)   The mendel's laws of inheritance were rediscovered in 1900 by:

a. Bateson and Punnet
b. Beadle, Tatum and Leader-berg
c. Watson and Crick
d. Correns, de Varies and Tschermak
Answer  Explanation 

ANSWER: Correns, de Varies and Tschermak

Explanation:
No explanation is available for this question!


3)   The minute scaly outgrowths borne at the upper end of the leaf sheath, as in Gramineae are called:

a. Bract
b. Bracteole
c. Stipule
d. Ligule
Answer  Explanation 

ANSWER: Ligule

Explanation:
No explanation is available for this question!


4)   The mode of arrangement of ovules in the cavity of ovary is known as:

a. Pollination
b. Aestivation
c. Placenatation
d. Fertilization
Answer  Explanation 

ANSWER: Placenatation

Explanation:
No explanation is available for this question!


5)   Which of the following breeding procedures are not used for producing new varieties of self-pollined crop?

a. Recurrent selection
b. Mass selection
c. Pure line selection
d. Hybridization
Answer  Explanation 

ANSWER: Mass selection

Explanation:
No explanation is available for this question!


6)   Which is the monoecious plant?

a. Maize
b. Datepalm
c. Rice
d. Mango
Answer  Explanation 

ANSWER: Maize

Explanation:
No explanation is available for this question!


7)   The net movement of a substance from an area of its own high concentration into another area of lesser concentration as rsult of kinetic energy of molecules is called:

a. Diffusion
b. Osmosis
c. Imbibition
d. Plasmolysis
Answer  Explanation 

ANSWER: Diffusion

Explanation:
No explanation is available for this question!


8)   The normal eye colour in Drosphila is red. But mutants occur having white eye and also different shades ranging between white and red which are all recessive to red, while white colour is recessive to all others. This phenomenon is due to:

a. Pseudodominance
b. Pseudoallelism
c. Codominance
d. Polygenes
Answer  Explanation 

ANSWER: Pseudodominance

Explanation:
No explanation is available for this question!


9)   The nucleus of the cell was first discovered by:

a. Robert Brown
b. Robert hHooke
c. Strasburger
d. Boveri
Answer  Explanation 

ANSWER: Robert Brown

Explanation:
No explanation is available for this question!


10)   The necleus of the functional megaspore divides:

a. Meiotically
b. Asexually
c. Apomictically
d. Mitotically
Answer  Explanation 

ANSWER: Mitotically

Explanation:
No explanation is available for this question!


11)   The number of chromosome in common wheat is:

a. 36
b. 38
c. 42
d. 48
Answer  Explanation 

ANSWER: 42

Explanation:
No explanation is available for this question!


12)   The number of stamens is indefinite in:

a. Cruciferae
b. Solanaceae
c. Papillionaceae
d. Malvaceae
Answer  Explanation 

ANSWER: Malvaceae

Explanation:
No explanation is available for this question!


13)   The nutritive tissue, which is infact, a remnant of the nucleus to called:

a. Endosperm
b. Perisperm
c. Yolk
d. None of the above
Answer  Explanation 

ANSWER: Perisperm

Explanation:
No explanation is available for this question!


14)   The seeded fruit of rice or maize grain is called:

a. Berry
b. Pepo
c. Siliqua
d. Caryopsis
Answer  Explanation 

ANSWER: Caryopsis

Explanation:
No explanation is available for this question!


15)   The only force responsible for the movement of water through a membrane is:

a. Molecular activity
b. Hydrostatic pressure
c. Osmotic pressure
d. All the above
Answer  Explanation 

ANSWER: All the above

Explanation:
No explanation is available for this question!


16)   The ovary of family liliaceae is:

a. Trilocular superior with axile placentation
b. Trilocular inferior with parietal placenation
c. Trilocular inferior with basal placentation
d. Trilocular superior with free central placentation
Answer  Explanation 

ANSWER: Trilocular superior with axile placentation

Explanation:
No explanation is available for this question!


17)   The particles of hemicolloides have size (diameter) round about:

a. Less than 1 mu
b. Between 1 mu and 100 mu
c. 1 mu
d. More than 100 mu
Answer  Explanation 

ANSWER: 1 mu

Explanation:
No explanation is available for this question!


18)   The phenomenon is called misogamy, when the tube enters into the embryo sac through:

a. Micropyle
b. Chalaza
c. Integuments
d. None of the above
Answer  Explanation 

ANSWER: Integuments

Explanation:
No explanation is available for this question!


19)   The physical basis of heredity is termed as:

a. Gene pool
b. Gene frequency
c. Germplasm
d. None of the above
Answer  Explanation 

ANSWER: Gene pool

Explanation:
No explanation is available for this question!


20)   The place on the stem or branch where one or more leaves arise is known as:

a. Internode
b. Node
c. Apex
d. Sheath
Answer  Explanation 

ANSWER: Node

Explanation:
No explanation is available for this question!


21)   The placentation is mustard is:

a. Marginal
b. Parietal
c. Axile
d. Basal
Answer  Explanation 

ANSWER: Parietal

Explanation:
No explanation is available for this question!


22)   The plant that grow in very dry places and can withstand a prolonged period of drought uninjured are:

a. Hydrophytes
b. Hygrophytes
c. Mesophytes
d. Xerophytes
Answer  Explanation 

ANSWER: Xerophytes

Explanation:
No explanation is available for this question!


23)   The plant, which is growing in saline soils or saline water with preponderance of soil in it, is said:

a. Mesophytes
b. Xerophytes
c. Hygrophytes
d. Halophytes
Answer  Explanation 

ANSWER: Halophytes

Explanation:
No explanation is available for this question!


24)   The plants, which grow in water or in very wet places, are

a. Hydrophytes
b. Hygrophytes
c. Mesophytes
d. Epiphytes
Answer  Explanation 

ANSWER: Hydrophytes

Explanation:
No explanation is available for this question!


25)   The plants, which grow in water deserts, are called:

a. Mesophytes
b. Hydrophytes
c. Xerophytes
d. Halophytes
Answer  Explanation 

ANSWER: Xerophytes

Explanation:
No explanation is available for this question!


26)   The plants, which occur in moist shady places in forests or in the moist soil near waterlogged localities are:

a. Hydrophyte
b. Hygrophytes
c. Xerophytes
d. Mesophytes
Answer  Explanation 

ANSWER: Hydrophyte

Explanation:
No explanation is available for this question!


27)   The plasma membrane is:

a. Impermeable membrane
b. Semi-permeable
c. Permeable
d. None of the above
Answer  Explanation 

ANSWER: Semi-permeable

Explanation:
No explanation is available for this question!


28)   The point of attachment of the body of the ovule is its funicle is known as:

a. Chalaza
b. Raphe
c. Hilum
d. Stalk
Answer  Explanation 

ANSWER: Hilum

Explanation:
No explanation is available for this question!


29)   The pollen along with pollen tube is known as:

a. Microspore
b. Pollengrain
c. Megaspore
d. Male gametophyte
Answer  Explanation 

ANSWER: Male gametophyte

Explanation:
No explanation is available for this question!


30)   Which is the dioecious plant?

a. Maize
b. Marigold
c. Vallisneria
d. Rice
Answer  Explanation 

ANSWER: Vallisneria

Explanation:
No explanation is available for this question!


31)   The pressure responsible for pushing the membrane against the cell wall is termed as:

a. Osmotic pressure
b. Suction pressure
c. Wall pressure
d. Turgor pressure
Answer  Explanation 

ANSWER: Turgor pressure

Explanation:
No explanation is available for this question!


32)   The process of formation of eggs in animals is called:

a. Oogenesis
b. Telophase
c. Oogonium
d. None of them
Answer  Explanation 

ANSWER: Oogenesis

Explanation:
No explanation is available for this question!


33)   The process of formation of sperms in animals is known as:

a. Spermatogonium
b. Spermatogenesis
c. Spematid
d. None of them
Answer  Explanation 

ANSWER: Spermatogenesis

Explanation:
No explanation is available for this question!


34)   The process of guttation is due to:

a. Leaf suction
b. Excess transpiration
c. Root Pressure
d. Wall Pressure
Answer  Explanation 

ANSWER: Root Pressure

Explanation:
No explanation is available for this question!


35)   The process of making the expression of a non-allelic gene by another gene or gene pair is known as:

a. Epistasis
b. Hypostasis
c. Nobilisation
d. None of the above
Answer  Explanation 

ANSWER: Epistasis

Explanation:
No explanation is available for this question!


36)   The process of megasporogenesis occurs in:

a. Embryosac
b. Egg cell
c. Pollensac
d. Ovule
Answer  Explanation 

ANSWER: Ovule

Explanation:
No explanation is available for this question!


37)   The process, double fertilization was first discovered by:

a. Nawaschin
b. Strasburger
c. Robert Brown
d. Hugo de Vries
Answer  Explanation 

ANSWER: Nawaschin

Explanation:
No explanation is available for this question!


38)   The production of double cross hybrid in maize was first suggested by:

a. Shull
b. East
c. Jones
d. Hull
Answer  Explanation 

ANSWER: Jones

Explanation:
No explanation is available for this question!


39)   The production of double cross hybrid in maize was first suggested by:

a. Megasprogenesis
b. Microsporgensis
c. Gametogenesis
d. Sporogenesis
Answer  Explanation 

ANSWER: Sporogenesis

Explanation:
No explanation is available for this question!


40)   The production of sperms is known as:

a. Megagametogenesis
b. Microsporogenesis
c. Microgametogenesis
d. Megasporogenesis
Answer  Explanation 

ANSWER: Microgametogenesis

Explanation:
No explanation is available for this question!


41)   The proportion of one allele as represented in a breeding population is known as:

a. Gene
b. Gene pool
c. Both of the above
d. None of the above
Answer  Explanation 

ANSWER: Gene

Explanation:
No explanation is available for this question!


42)   The provision of light of shorten wavelength at the same time as longer red wavellength _______ photosynthesis:

a. Maintains
b. Enhances
c. Reduces
d. Does not affect
Answer  Explanation 

ANSWER: Enhances

Explanation:
No explanation is available for this question!


43)   The raw materials required for photosynthesis in vascular plants are:

a. CO2 and water
b. CO2, water and mineral
c. CO2, water, mineral salts and chlorophyll
d. CO2, water and mineral salt
Answer  Explanation 

ANSWER: CO2, water, mineral salts and chlorophyll

Explanation:
No explanation is available for this question!


44)   The removal of apical buds and young leaves ______ branching.

a. Decreases
b. Increases
c. Maintains
d. No effect
Answer  Explanation 

ANSWER: Increases

Explanation:
No explanation is available for this question!


45)   The replication of DNA is:

a. Conservative
b. Non-conservative
c. Semi-conservative
d. Direpersive
Answer  Explanation 

ANSWER: Semi-conservative

Explanation:
No explanation is available for this question!


46)   Which is a common method used in cross-pollinated crops?

a. Mass selection
b. Bulk method
c. Pure line method
d. Pedigree method
Answer  Explanation 

ANSWER: Pedigree method

Explanation:
No explanation is available for this question!


47)   The science dealing with variation and heredity is called:

a. Immunology
b. Cytology
c. Genetics
d. Radiology
Answer  Explanation 

ANSWER: Genetics

Explanation:
No explanation is available for this question!


48)   The science, which deals with the study of interrelationship between the living organisms and the various factors of the environment surrounding them as:

a. Botany
b. Biology
c. Ecology
d. Zoology
Answer  Explanation 

ANSWER: Ecology

Explanation:
No explanation is available for this question!


49)   The scientific name of bread wheat is:

a. T. durum
b. T. dicoccum
c. T. aestivum
d. T. monecoccum
Answer  Explanation 

ANSWER: T. aestivum

Explanation:
No explanation is available for this question!


50)   The scientific name of maize is:

a. Glycine max
b. Hordeum vulgare
c. Zea mays
d. None of them
Answer  Explanation 

ANSWER: Zea mays

Explanation:
No explanation is available for this question!