Agriculture/Agriculture Agriculture Genetics Plant Breeding and Biotechnology set-2 Sample Test,Sample questions

Question:
  Cauliflower cabbage broccoli kohlrabi and brussels sprouts have been derived from wild cabbage that still grows in coastal regions of:

1.Latin America

2.Mesopotamia

3.Europe and N. Africa

4.South Asia and South Africa


Question:
  China rose is a :

1.Herb

2.Shrub

3.Tree

4.Climber


Question:
  Cross of F1 hybrid with either parent is called:

1.Test cross

2.Single cross

3.Back cross

4.None of them


Question:
  Development of seed without-sexual process is:

1.Apomixes

2.Polyembryony

3.Both (a) & (b)

4.None of the above


Question:
  Disease rsistance in barley is:

1.Quantitative characteristics

2.Qualitative characteristics

3.Both (a) & (b)

4.None of the above


Question:
  Each stamen is differentiated into:

1.Filament

2.Anther

3.Connective

4.All of the above


Question:
  Embryo-sac is:

1.Male gametophyte

2.Micro-gametophyte

3.Saprophyte

4.Female gametophyte


Question:
  Epicalyx is the characteristic of the family:

1. Gramineae

2.Solanaceae

3.Malvaceae

4.Compositeae


Question:
  Female reproductive organ in the flower is:

1.Calyx

2.Corolla

3.Stamens

4.Carpals


Question:
  Fruit of candytuft is known as:

1.Legume

2.Siliqua

3.Silicula

4.Capsule


Question:
  Fruit of pea is known as:

1.Legume

2.Follicle

3.Siliqua

4.Capsule


Question:
  Fruits of calotropis are:

1.Legume

2.Siliqua

3.Capsule

4.Follicle


Question:
 Commercial banana have ______ instead of 22 chromosomes of ordinary diploid varieties:

1.13

2.23

3.33

4.43


Question:
 Conifers are abundant in:

1.Tropical zone

2.Alpine zone

3.Temperate zone

4.Subtropical zone


Question:
 Cotton:

1.Is a self-pollinated crop

2.Is a cross pollinated crop

3.Is an often-cross pollinated crop

4.Is an often-self pollinated crop


Question:
 Cytogenetically the definitive nucleus is:

1.Haploid

2.Diploid

3.Triploid

4.Tetraploid


Question:
 Despite conspicuous deterioration of maize upon continuous setting it is more tolerant to inbreeding than:

1.Limabean

2.Barley

3.Alfalfa

4.Buckwheat


Question:
 DNA exists as a double helix as a result of hydrogen bonding between:

1.Sugar molecules

2.hosphate groups

3.Nucleohistones

4.Nucleosides


Question:
 Electron microscope was invented by:

1.Jansen

2.Leeuwenhoek

3.Knoll and Ruska

4. None of the above


Question:
 Exchange of genetic material takes place between non-sister chromatids of homologous chromosomes during the:

1.Four stand stage in prophase I

2.Two strand stage in prophase I

3.Metaphase I stage in meiosis

4.Two strand stage in prophase II


Question:
 Flower colour in plants is a:

1.Qualitative chracter

2.Quantitative character

3. Both of them

4.None of them


Question:
 Generally embryosac is:

1.Monosporic

2.Bisporic

3.Tetrasporic

4.Octosporic


Question:
 Genes are made up of:

1.RNA only

2.DNA only

3.RNA nd DNA

4.Proteins


Question:
 Who is regarded as the father of botany?

1.Theofrastus

2.Gregor Mendel

3.Carolus Linnaeus

4.Oswald Tippo


Question:
Bulk population breeding is suitable for:

1.Fruit crops

2.Vegetable

3.Small grains

4.Flower crops


Question:
Carolus Linnaeus is credited with introducing the:

1.Law of limiting factors

2.Law of independent assortment

3.Binomial system of nomenclature

4.Laws of inheritance


Question:
Characteristic feature of the hydrophytes is:

1.Reduced protective tissues

2.Feebly developed root system

3.Spongy stem

4.All the above


Question:
Characteristic feature of xerophytes is:

1.Long taproot

2.Leaves and stem with thick cuticle

3.Sunken stomata

4.All of the above


Question:
Chauncey Goodrich was the first _____ to publish a paper dealing with resistance of potatoes to the blight diseases:

1.Britisher

2.German

3.Dutch

4.American


Question:
Chromosome numbers in somatic cells of a maize plant are:

1.22

2.26

3.14

4.20


Question:
Chromosome which pair at meiotic prophase and are similar size shape structure and function are known as:

1.Homologous

2.Isocentric

3.Isochromosome

4.Acentric


Question:
CIMMYT is located at:

1.Miexico

2.England

3.Spain

4.Nigeria


Question:
Cliestogamy encourages:

1.Self pollination

2.Cross pollination

3.Apomixes

4.Inbreeding depression


Question:
Clone in general is:
 

1.Homozygous

2.Heterogeneous

3.Heterozygous

4.None of the above


Question:
Composites are developed by using:

1.Advanced generation seed mixtures obtained from high yielding intervarietal or interracial crosses

2.Hybrid directly from intervarietal crosses

3.Recurrent selection for specific combining ability

4.The hybrid of an inbred with an open-pollinated variety


Question:
Creation of the world by God is basis of the:

1.Theory of eternity of present condition

2.Theory of special creation

3.Theory of catastrophism

4.All the above


Question:
Cross between cytoplasmic male sterile x cytoplasmic male fertile:

1.Produce sterile F1

2.Produce fertile F1

3.Produce fertile sterile in 1:1 ratio

4.None of the above


Question:
Crossing over occurs at:

1.Two strand stage

2.Four strand stage

3.Three strand stage

4.None of the above


Question:
Cuscuta is:

1.Total stem parasite

2.Partial stem parasite

3.Partial root parasite

4.Total root parasite


Question:
Dallus is:

1.An undifferentiated mass of cells

2.A gamete

3.A tissue

4.A modification of leaf


Question:
Date palm is:

1.Monoecious

2.Dioecious

3.Polygamous

4.None of the above


Question:
Degenerated parts of plants and animals which do not serve any useful purpose are known as:

1.Un-useful structures

2.Vestigial structures

3.Essential organs

4.Unwanted structures


Question:
Details of the kreb s cycle were worked out by the use of:

1.Radioactive carbon compounds

2.Ultracentrifugation

3.Electron-microscopy

4.X-ray crystallography


Question:
Details of the kreb s cycle were worked out by the use of:

1.Radioactive carbon compounds

2.Ultracentrifugation

3.Electron-microscopy

4.X-ray crystallography


Question:
Development and formation of pollen grains in anther of the stamen is known as:

1.Pollination

2.Fertilization

3.Microsporogenesis

4.Megasporogenesis


Question:
Development of a fruit without fertilization is known as:

1.Parthenogenesis

2.Polyembrohy

3.Budding

4.Apomixes


Question:
Development of the pollen tube the seed and the 3n endosperm double fertilization is characteristic features of:

1.Bryophytes

2.Pteridophytes

3.Gymnosperms

4.Angiosper


Question:
Disease reaction is by and large a process:

1.Physical

2.Chemical

3.Mechanical

4.Manual


Question:
DNA polymerase:

1.Helps is DNA replication

2.Helps in RNA replication

3.Helps in protein synthesis

4.None of the above


Question:
DPD is the index of sucking power and is also known as:

1.Suction pressure

2.Wall pressure

3.Osmotic

4.Turgor pressure


Question:
During mitotic cell division the total chromosome number:

1.Remains the same

2.Gets halved

3.Gets doubled

4.None of them


Question:
Each cell of the female gametophyte is hapoid except:

1.Egg cell

2.Synergid cells

3.Antipodals cells

4.Definitive nucleus


Question:
Each gramme of water transpired absorbs ______ kj of latent heat from the leaf and its environment:

1.2.0 - 2.1

2.2.2-2.3

3.3.4-3.5

4.2.7-2.8


Question:
Each mature anther has:

1.One pollen sac

2.Two pollen sacs

3.Three pollen sacs

4.Four pollen sacs


Question:
Each megaspore mother cell finally produces:

1. Four megaspores

2.Two megaspores

3.Only one megaspore

4.None of the above


Question:
Each pollen mother cell produces four haploid cells as a result of:

1.Mitosis

2.Meiosis

3.One mitosis and then meiosis

4.None of the above


Question:
Emasculation is:

1.Removal of male parts from a bisexual flower

2.Removal of female parts

3.Removal of male and female parts

4.None of the above


Question:
Endosperm is store house for germinating embryo and it contains:

1.Hormones

2.Vitamins

3.Enzymes

4.All the above


Question:
Flower is specialized:

1.Shoots

2.Leaf

3.Stem

4.Tendril


Question:
Flowers having both androecium s and gynoecium s are said to be:

1.Hermaphrodite

2.Unisexual

3.Staminate

4.Pistilate


Question:
For Hardy - Weinberg law to operate:

1.The population should be large

2.There should be open pollination

3.There should be no selection

4.ll the above


Question:
Formation of new genes takes place due to:

1.Inversion

2.Transduction

3.Transversion

4.Mutation


Question:
Fruit of sunflower is:

1.Caryopsis

2.Samara

3.Cypsela

4.Nut


Question:
Fusion of the one sperm (male gamete) and definitive nucleus results in the formation of:

1.Endosperm

2.Embryo

3.Saprophyte

4.Zygote


Question:
Genetics is the study of:

1.Genes

2.Gene interaction

3.Heredity and variation

4.DNA


Question:
Who established that character is transmitted from generation to generation through chromosomes?

1.Robert Brown

2.Robert Hooke

3.Nawaschin

4.Strasburger and Hertwig


Question:
Who founded the cell theory?

1.Robert Hooke

2. Von Mohl and Nageli

3.Schwann and Schleiden

4.Gres and Malpigi


Question:
Who invented first compound microscope?

1.Robert Hooke

2.Jansen

3.Leeuwenhoek

4.None of these


Question:
Who is credited with the discovery of mitosis?

1.Farmer and Moore

2.Huxley

3.Flemming

4.Robert Hooke


Question:
Who suggested the imbiitions theory of ascent of sap?

1.Sir J.C.Bose

2.Sachs

3.Strasburger

4.Dixon and Jolly


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