Agriculture/Agriculture Agriculture Genetics Plant Breeding and Biotechnology Set-5 Sample Test,Sample questions

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

1.Selfed seed

2.Mutated seed without radiation treatment

3.Hybrid seed without emasculation

4.Sterile seed


Question:
  The nucleus of the cell was first discovered by:

1.Robert Brown

2.Robert hHooke

3.Strasburger

4.Boveri


Question:
  The ovary of family liliaceae is:

1.Trilocular superior with axile placentation

2.Trilocular inferior with parietal placenation

3.Trilocular inferior with basal placentation

4.Trilocular superior with free central placentation


Question:
  The phenomenon is called misogamy when the tube enters into the embryo sac through:

1.Micropyle

2.Chalaza

3.Integuments

4.None of the above


Question:
  The physical basis of heredity is termed as:

1.Gene pool

2.Gene frequency

3.Germplasm

4.None of the above


Question:
  The plants which grow in water deserts are called:

1.Mesophytes

2.Hydrophytes

3.Xerophytes

4.Halophytes


Question:
  The process double fertilization was first discovered by:

1.Nawaschin

2.Strasburger

3.Robert Brown

4.Hugo de Vries


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

1.Epistasis

2.Hypostasis

3.Nobilisation

4.None of the above


Question:
  The process of megasporogenesis occurs in:

1.Embryosac

2.Egg cell

3.Pollensac

4.Ovule


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

1.Shull

2.East

3.Jones

4.Hull


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

1.Gene frequency

2.Gene pool

3. Both of the above

4.None of the above


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

1.Maintains

2.Enhances

3.Reduces

4.None


Question:
  The science dealing with variation and heredity is called:

1.Immunology

2.Cytology

3.Genetics

4.Radiology


Question:
  The slender stalk by which ovule is attached to the placenta is known as:

1.Funicle

2.Hilum

3.Raphe

4.Chalaza


Question:
  The staminate ______ plants out yield pistillate plants by about 25 per cent.

1.Asparagus

2.Lettuce

3.Spinach

4.Hemp


Question:
  The sugar found in DNA is:

1.Deoxyribose

2.Ribose

3.Fructose

4.Maltose


Question:
  The term epistasis was originally used by _____ in 1909 to describe genes whose effects mark or cover the effects of other genes:

1.Wagner

2.Bateson

3.Hayman

4.Atwood


Question:
  Which is a common method used in cross-pollinated crops?

1. Mass selection

2.Bulk method

3.Pure line method

4.Pedigree method


Question:
  Which is the dioecious plant?

1.Maize

2.Marigold

3.Vallisneria

4.Rice


Question:
 The majority of halophytes show:

1.Mesomorphic character

2.Hydromorphic character

3.Xeromorphic caracter

4.None of above


Question:
 The mendel s laws of inheritance were rediscovered in 1900 by:

1.Bateson and Punnet

2.Beadle Tatum and Leader-berg

3.Watson and Crick

4.Correns de Varies and Tschermak


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

1.Bract

2.Bracteole

3.Stipule

4.Ligule


Question:
 The number of chromosome in common wheat is:

1.36

2.38

3.48

4.42


Question:
 The nutritive tissue which is infact a remnant of the nucleus to called:

1.Endosperm

2.Perisperm

3.Yolk

4.None of the above


Question:
 The placentation is mustard is:

1.Marginal

2.Parietal

3.Axile

4.Basal


Question:
 The placentation is mustard is:

1.Marginal

2.Parietal

3.Axile

4.Basal


Question:
 The pollen along with pollen tube is known as:

1.Microspore

2.Pollengrain

3.Megaspore

4.Male gametophyte


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

1.Megasprogenesis

2.Microsporgensis

3.Gametogenesis

4.Sporogenesis


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

1.Botany

2.Biology

3.Ecology

4.Zoology


Question:
 The seeded fruit of rice or maize grain is called:

1.Berry

2.Pepo

3.Siliqua

4.Caryopsis


Question:
 The segregation of individuals in the F2 or in a later generation of a cross which shows a more extreme development of a character than either parent is termed as:

1.Hybridisation

2.Heterosis

3.Linkage

4.Transgressive segregates


Question:
 The segregation of individuals in the F2 or in a later generation of a cross which shows a more extreme development of a character than either parent is termed as:

1.Hybridisation

2.Heterosis

3.Linkage

4.Transgressive segregates


Question:
 The stage of prophase occur in:

1.Mitosis

2.Meiosis

3.Amitosis

4.Free cell formation


Question:
 The tap root system is normally meant to:

1.Absorb water and mineral salts from the soil

2.Conduct water and mineral salts to the stem

3.Give proper encharge to plant

4.All of the above


Question:
 The term genetics was coined by:

1.Gregor Mendel

2.Bateson

3.T.H. Morgan

4.H.J. Mujer


Question:
 Which is the monoecious plant?

1.Maize

2.Datepalm

3.Rice

4.Mango


Question:
The main type of endosperm development is:

1.Nuclear type

2.Cellular type

3.Both (a) & (b)

4.None of above


Question:
The male sterile line is a cross to produce hybrid seed is known as:

1.A line

2.R line

3.C line

4.None of them


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

1.Pollination

2.Aestivation

3.Placenatation

4.Fertilization


Question:
The necleus of the functional megaspore divides:

1.Meiotically

2.Asexually

3.Apomictically

4.Mitotically


Question:
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:

1.Pseudodominance

2.Pseudoallelism

3.Codominance

4.Polygenes


Question:
The number of stamens is indefinite in:

1.Cruciferae

2.Solanaceae

3.Papillionaceae

4.Malvaceae


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

1.Molecular activity

2.Hydrostatic pressure

3.Osmotic pressure

4.All the above


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

1.Less than 1 mu

2.Between 1 mu and 100 mu

3.1 mu

4.More than 100 mu


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

1.Internode

2.Node

3.Apex

4.Sheath


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

1.Hydrophytes

2.Hygrophytes

3.Mesophytes

4.Xerophytes


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

1.Mesophytes

2.Xerophytes

3.Hygrophytes

4.Halophytes


Question:
The plants which grow in water or in very wet places are

1.Hydrophytes

2.Hygrophytes

3.Mesophytes

4.Epiphytes


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

1.Hydrophyte

2.Hygrophytes

3.Xerophytes

4.Mesophytes


Question:
The plasma membrane is:

1.Impermeable membrane

2.Semi-permeable

3.Permeable

4.None of the above


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

1.Chalaza

2.Raphe

3.Hilum

4.Stalk


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

1.Osmotic pressure

2.Suction pressure

3.Wall pressure

4.Turgor pressure


Question:
The process of formation of eggs in animals is called:

1.Oogenesis

2.Telophase

3.Oogonium

4.None of them


Question:
The process of formation of sperms in animals is known as:

1.Spermatogonium

2.Spermatogenesis

3.Spematid

4.None of them


Question:
The production of sperms is known as:

1.Megagametogenesis

2.Microsporogenesis

3.Microgametogenesis

4.Megasporogenesis


Question:
The raw materials required for photosynthesis in vascular plants are:

1. CO2 and water

2.CO2 water and mineral

3.CO2 water mineral salts and chlorophyll

4.CO2 water and mineral salt


Question:
The removal of apical buds and young leaves ______ branching.

1.Decreases

2.Increases

3.Maintains

4.No effect


Question:
The replication of DNA is:

1.Conservative

2.Non-conservative

3.Semi-conservative

4.Direpersive


Question:
The scientific name of bread wheat is:

1.T. durum

2. T. dicoccum

3.T. aestivum

4.T. monecoccum


Question:
The scientific name of maize is:

1.Glycine max

2.Hordeum vulgare

3.Zea mays

4.None of them


Question:
The series of changes in the vegetation of a pond lake marsh or a stream are together known as:

1.Hydrosere

2.Xerosere

3.Biosphere

4.None of above


Question:
The series of changes in the vegetation of bare rocky beds rocky hill slopes sand beds into extreme scarcity of water are together known as:

1.Mesosere

2.Xerosere

3.Xerophytes

4.None of the above


Question:
The situation where an egg cell is developed into an embry  without fertilization is described as:

1.Apomixis

2.Parthenocarpy

3.Sexual reproduction

4.Parthenogenesis


Question:
The structure of chromosome can best be observed during:

1.Prophase

2.Metaphase

3.Anaphase

4.Telaphase


Question:
The study of ecology from the standpoint of individual species is called:

1.Synecology

2.Phytogeography

3.Autecology

4.None of the above


Question:
The surface tension in any liquid is ______ related to the temperature:

1.Universally

2.Directly

3.Indirectly

4.Does not


Question:
The term heterosis was first used by:

1.Mendel

2.Shull

3.Bateson

4.Punnet


Question:
When we place a living plant cell in a solution with an osmotic potential identical to that of its own cell sap the solution is:

1.Hypertonic

2.Hypotonic

3.Isotonic

4.None of the above


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

1.Recurrent selection

2.Mass selection

3.Pure line selection

4.Hybridization


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