Plant Breeding And Genetics MCQs

Option A: Endosperm

Option B: Seed

Option C: Ovary

Option D: Fruit

Correct Answer: Seed ✔

Option A: Joseph Kolreuter

Option B: Vavilov

Option C: Dobzhansky

Option D: Darwin

Correct Answer: Darwin ✔

Option A: Spermatozoa

Option B: Spermatid

Option C: Primary oocyte

Option D: Spermatocyte

Correct Answer: Spermatocyte ✔

Option A: Iodine %

Option B: Saponification

Option C: Carbon chain length

Option D: %age of erusic acid

Correct Answer: Iodine % ✔

Option A: Spermatozoa

Option B: Spermatid

Option C: Primary oocyte

Option D: Spermatocyte

Correct Answer: Spermatocyte ✔

Option A: Sugar beat

Option B: Sugarcane

Option C: Maize

Option D: Sunflower

Correct Answer: Sugar beat ✔

Option A: GCA & SCA variances

Option B: GCA & SCA effects

Option C: D & H components

Option D: All of these

Correct Answer: All of these ✔

Option A: Males & females

Option B: Among males

Option C: Among females

Option D: All of these

Correct Answer: Males & females ✔

Option A: tRNA

Option B: mRNA

Option C: rRNA

Option D: None of these

Correct Answer: mRNA ✔

Option A: Petiolate

Option B: Sessile

Option C: Stipulate

Option D: Pilose

Correct Answer: Stipulate ✔

Option A: Introduction

Option B: Mutation

Option C: Hybridization

Option D: Selection

Correct Answer: Selection ✔

Option A: Multiple alleles

Option B: Polygenes

Option C: Plasmogenes

Option D: Both B and C

Correct Answer: Multiple alleles ✔

Option A: Functional pollen

Option B: Sterile pollen

Option C: Sterile anther

Option D: All of these

Correct Answer: Functional pollen ✔

Option A: S*x linked trait

Option B: S*x influenced trait

Option C: S*x limited trait

Option D: None of above

Correct Answer: S*x linked trait ✔

Option A: East Asia

Option B: North America

Option C: West Africa

Option D: South America

Correct Answer: North America ✔

Option A: Samara

Option B: Achene

Option C: Caryopsis

Option D: Phyxis

Correct Answer: Achene ✔

Option A: Pistillate

Option B: Staminate

Option C: Bisexual

Option D: Usually sterile

Correct Answer: Bisexual ✔

Option A: Sterile

Option B: Pistillate

Option C: Bisexual

Option D: Staminate

Correct Answer: Pistillate ✔

Option A: 25-35%

Option B: 50-60%

Option C: 35-40%

Option D: 45-55%

Correct Answer: 25-35% ✔

Option A: Paddy

Option B: Wheat

Option C: Sorghum

Option D: Maize

Correct Answer: Sorghum ✔

Option A: Etiolation is not a reversible process

Option B: Etiolation is genetically while albinism is physiological

Option C: Etiolation is physiological while albinism is genitival

Option D: Etiolation and albinism are synonyms

Correct Answer: Etiolation is physiological while albinism is genitival ✔

Option A: Plastids

Option B: Protoplasm

Option C: Membrane

Option D: Nuclear and membrane

Correct Answer: Nuclear and membrane ✔

Option A: 2-4 micron

Option B: 1-4 micron

Option C: 0.5-2 micron

Option D: 40-70 micron

Correct Answer: 0.5-2 micron ✔

Option A: Golgi bodies

Option B: Mitochondria

Option C: Lysosome

Option D: Endoplasmic reticulum

Correct Answer: Mitochondria ✔

Option A: Ribosomes

Option B: Golgi bodies

Option C: Mitochondria

Option D: Plastid

Correct Answer: Plastid ✔

Option A: Mitochondria

Option B: Nucleus

Option C: Chloroplast

Option D: Chromosomes

Correct Answer: Nucleus ✔

Option A: Secretion

Option B: Respiration

Option C: Excretion

Option D: Conversion of light energy into chemical energy

Correct Answer: Conversion of light energy into chemical energy ✔

Option A: Palade

Option B: Altmann

Option C: Cowdry

Option D: Garner

Correct Answer: Altmann ✔

Option A: Movement

Option B: Respiration

Option C: Protein synthesis

Option D: Growl

Correct Answer: Protein synthesis ✔

Option A: Knoll and Risks

Option B: Schwaan

Option C: Sigmund

Option D: Robert Hook

Correct Answer: Knoll and Risks ✔

Option A: Thymine present in DNA and Uralic in RNA

Option B: Deoxyribose and thymine is present in DNA and ribose and Ural in RNA

Option C: Ribose and thymine in DNA and deoxyribose and uracil in RNA

Option D: Deoxyribose in DNA and ribose in RNA

Correct Answer: Deoxyribose and thymine is present in DNA and ribose and Ural in RNA ✔

Option A: Van Beneden

Option B: T. Boveri

Option C: Walleye

Option D: Aluman

Correct Answer: Walleye ✔

Option A: Protein

Option B: Ribosome

Option C: Nucleic acid

Option D: Carbohydrates

Correct Answer: Nucleic acid ✔

Option A: Episode

Option B: Co dominance

Option C: Epistasis

Option D: Dominance

Correct Answer: Epistasis ✔

Option A: 9:3:3:1

Option B: 9:7

Option C: 9:9:9:3:3:3:1

Option D: 1:4:6:4:1

Correct Answer: 1:4:6:4:1 ✔

Option A: Leucoplast

Option B: Plastid

Option C: Chloroplast

Option D: Protoplast

Correct Answer: Plastid ✔

Option A: B. Protest

Option B: Protophyta

Option C: Protozoa

Option D: Prokaryotes

Correct Answer: Protophyta ✔

Option A: Inversion

Option B: Conversion

Option C: Recessive gene

Option D: Realignment

Correct Answer: Recessive gene ✔

Option A: Audacious

Option B: Autotrophic

Option C: Heterotrophic

Option D: Phototrophic

Correct Answer: Autotrophic ✔

Option A: Testes

Option B: Salivary glands

Option C: Ovaries

Option D: Muscles

Correct Answer: Salivary glands ✔

Option A: pea

Option B: Acetabularia

Option C: Macrospore

Option D: Maize

Correct Answer: Acetabularia ✔

Option A: Gene flow

Option B: Genetic drift

Option C: Gene frequency

Option D: None of the above

Correct Answer: Genetic drift ✔

Option A: Autotrophy

Option B: Auxotroph

Option C: Axenema

Option D: Heterotroph

Correct Answer: Autotrophy ✔

Option A: They are recessive and carried by heterozygous individuals

Option B: Genetic drift occurs because of a small population in to offsprings

Option C: Making possible reproduction in all types of environments

Option D: They have future survival value

Correct Answer: They are recessive and carried by heterozygous individuals ✔

Option A: Energy storage in high high energy phosphate bonds

Option B: Protein synthesis in ribosome’s

Option C: Some triplet code for amino acids

Option D: Types of protein occurring in the body

Correct Answer: Energy storage in high high energy phosphate bonds ✔

Option A: Cardio vascular stimulant

Option B: In lowering blood pressure

Option C: In breaking down of cholesterol

Option D: All the above

Correct Answer: All the above ✔

Option A: 2 n+1

Option B: 2 n+2

Option C: 2 n+3

Option D: 2 n-1

Correct Answer: 2 n+1 ✔

Option A: Lathers odorous

Option B: Another Lamarckian

Option C: Possum sativa

Option D: Zeal Mays

Correct Answer: Lathers odorous ✔

Option A: The percentage of crossing over between them is very

Option B: Hardly any cross over are detected

Option C: No crossing ever can ever takes place between them

Option D: Only double cross over can take place between them

Correct Answer: No crossing ever can ever takes place between them ✔

Option A: Science concerned with improvement of heredity of animals

Option B: Science concerned with improvement of heredity of human race

Option C: Experimental alterations in the structure of the genes

Option D: Genetics of eukaryotes

Correct Answer: Science concerned with improvement of heredity of human race ✔

Option A: Batson

Option B: Johnnsen

Option C: Punned

Option D: Darlington

Correct Answer: Batson ✔

Option A: Mendel

Option B: De Vries

Option C: Tschermak

Option D: Watson

Correct Answer: Watson ✔

Option A: Double

Option B: One half

Option C: One fourth

Option D: Same

Correct Answer: Same ✔

Option A: Test cross

Option B: Backcross

Option C: Hybridization

Option D: Trihybrid

Correct Answer: Test cross ✔

Option A: Photocopy

Option B: Prototype

Option C: Phenotype

Option D: Apheliotropic

Correct Answer: Phenotype ✔

Option A: Hybrid

Option B: Heterosis

Option C: Backcross

Option D: None of the above

Correct Answer: Hybrid ✔

Option A: Annapolis

Option B: Polyploidy

Option C: Heterckaryotic

Option D: Haploid

Correct Answer: Annapolis ✔

Option A: All dominant genes will segregate together into daughter cells

Option B: All homologous chromosome pairs will separate

Option C: All daughter cells will have different homologous chromosome pairs

Option D: All linkage group will be disrupted

Correct Answer: All homologous chromosome pairs will separate ✔

Option A: Affects more than five characters

Option B: Affects more than ten characters

Option C: Affects only one character

Option D: Affects more than one character

Correct Answer: Affects more than five characters ✔

Option A: Allopolyploidy

Option B: Amphidiploids

Option C: Annapolis

Option D: Autopolyploid

Correct Answer: Autopolyploid ✔

Option A: A mutant organism which has lost its ability to synthesize one or more essential nutrients

Option B: A plan that is able to synthesize its own carbohydrates

Option C: An organism that depends on other organism for meting its nutrient requirements

Option D: non of these

Correct Answer: A mutant organism which has lost its ability to synthesize one or more essential nutrients ✔

Option A: AB, ab

Option B: Ab, ab

Option C: AB, Ab, aB, ab

Option D: Data insufficient

Correct Answer: AB, Ab, aB, ab ✔

Option A: Law of dominance

Option B: Law of segregation

Option C: Law of limiting factors

Option D: Law of inheritance

Correct Answer: Law of dominance ✔

Option A: Cancer

Option B: Zygote

Option C: Gastrula

Option D: New organ

Correct Answer: Cancer ✔

Option A: Formation of two daughter cells with identical DNA

Option B: Crossing over of the genes

Option C: Halving of chromosome nuriber between two daughter cells

Option D: Segregation of maternal and paternal characters

Correct Answer: Formation of two daughter cells with identical DNA ✔

Option A: Polyploidy

Option B: Mutant

Option C: Variant

Option D: Hybrid

Correct Answer: Hybrid ✔

Option A: Evolution may be described as

Option B: History of development of larger biological units

Option C: Inheritance of acquired characters

Option D: Discontinuous genetic variation

Correct Answer: Inheritance of acquired characters ✔

Option A: Crossing over

Option B: Polyploidy

Option C: Segregation

Option D: Gene mutation

Correct Answer: Polyploidy ✔

Option A: Linkage and crossing over

Option B: Presence of multiple alleles

Option C: Presence of lethal genes

Option D: Sex-linkage

Correct Answer: Linkage and crossing over ✔

Option A: Autodiploid

Option B: Hexaploid

Option C: Autopolyploid

Option D: Amphidiploid

Correct Answer: Amphidiploid ✔

Option A: Bagging

Option B: Inter over crossing

Option C: Intraspecific crossing

Option D: Inosculation

Correct Answer: Inosculation ✔

Option A: Microbes act as biological factories

Option B: Improvement of crop can take place

Option C: The gene pool is maintained

Option D: Genetic error can be rectified

Correct Answer: The gene pool is maintained ✔

Option A: Diploid number of chromosomes

Option B: Tetraploid number of chromosomes

Option C: Haploid number of chromosomes

Option D: None of the above

Correct Answer: Haploid number of chromosomes ✔

Option A: Albinism is dominant over green characters

Option B: Green plastids of male parent become nitrated

Option C: Plastids are inherited through maternal parents

Option D: Crossing over results in structural changes in green plastids

Correct Answer: Plastids are inherited through maternal parents ✔

Option A: Lysendo

Option B: Vavilow

Option C: Weismann

Option D: H be vnes

Correct Answer: Lysendo ✔

Option A: Mendel

Option B: Darwin

Option C: Huge and Vnes

Option D: Lamak

Correct Answer: Huge and Vnes ✔

Option A: Conversion pf organism to change of environment

Option B: Fossils

Option C: Adaptations through genervation

Option D: Struggle for existence

Correct Answer: Adaptations through genervation ✔

Option A: Plants can manufacture their own food material

Option B: There are more plants than animals

Option C: Plants are similar in structure

Option D: None of the above

Correct Answer: Plants can manufacture their own food material ✔

Option A: Colchicines treatment

Option B: Heat treatment

Option C: Breeding with the wild variety

Option D: Hormone spray

Correct Answer: Breeding with the wild variety ✔

Option A: Hybrid

Option B: Homozygous

Option C: Heterozygous

Option D: Dominant

Correct Answer: Homozygous ✔

Option A: 10

Option B: 20

Option C: 40

Option D: 15

Correct Answer: 10 ✔

Option A: Gene mutation

Option B: Chromosomal mutation

Option C: Monoploldy

Option D: Synapsis

Correct Answer: Chromosomal mutation ✔

Option A: Ideogram

Option B: Gene map

Option C: Karyotype

Option D: Phenotype

Correct Answer: Ideogram ✔

Option A: Half

Option B: 0/1

Option C: 1/1

Option D: 1/4

Correct Answer: Half ✔

Option A: Two homologous chromosomes

Option B: Two non homologous chromosomes

Option C: Any two chromosomes with one each

Option D: Same chromosomes

Correct Answer: Two homologous chromosomes ✔

Option A: Vitamin A

Option B: Vitamin C

Option C: Vitamin D

Option D: None of the above

Correct Answer: Vitamin A ✔

Option A: Dominance

Option B: Overdominance

Option C: Epistasis

Option D: All the above

Correct Answer: All the above ✔

Option A: Nelson (1973)

Option B: Flor (1956)

Option C: Robinson (1971)

Option D: Vander plank (1963)

Correct Answer: Flor (1956) ✔

Option A: Cenified seed

Option B: Nucleus seed

Option C: Foundation

Option D: Registered seed

Correct Answer: Nucleus seed ✔

Option A: Stout (1917)

Option B: Koelreuter (1763)

Option C: Brewbaker (1810)

Option D: Gerstel (1900)

Correct Answer: Koelreuter (1763) ✔

Option A: Plasmedesmata

Option B: Plasmalema

Option C: Trachieds

Option D: Nessels

Correct Answer: Plasmedesmata ✔

Option A: Jones (1917)

Option B: Muller (1927)

Option C: Fray (1966)

Option D: Karechenko (1927)

Correct Answer: Karechenko (1927) ✔

Option A: Endosperm

Option B: Per carp of fruit

Option C: Leaf

Option D: Inflorescence

Correct Answer: Per carp of fruit ✔

Option A: Napier

Option B: Anjan

Option C: Para

Option D: Marvel

Correct Answer: Napier ✔

Option A: Canada

Option B: Iran

Option C: Mexico

Option D: India

Correct Answer: Canada ✔

Option A: Jacob and monod (1965)

Option B: Crick (1966)

Option C: Watson and Crick (1953)

Option D: Briuen and Davidson (1959)

Correct Answer: Jacob and monod (1965) ✔

Option A: Non-disjunction

Option B: Segregation

Option C: Hybridization

Option D: Crossing over

Correct Answer: Non-disjunction ✔

Option A: Mutation

Option B: Selection

Option C: Migration

Option D: Random drift

Correct Answer: Migration ✔

Option A: Mendel (1810)

Option B: Balbiani (1881)

Option C: Allard (1910)

Option D: Baranetzky (1910)

Correct Answer: Balbiani (1881) ✔

Option A: Pentose

Option B: Hexose

Option C: Heptose

Option D: Triose

Correct Answer: Pentose ✔