Plant Breeding And Genetics MCQs

Option A: Mendel lan monohybrids

Option B: Mendelian dihybrids

Option C: Incomplete dominance

Option D: None of the above

Correct Answer: None of the above ✔

Option A: Calistoga

Option B: Chimera

Option C: Clone

Option D: Inbreeding

Correct Answer: Clone ✔

Option A: Hybridization

Option B: Backcross

Option C: Test cross

Option D: Biohybrid

Correct Answer: Backcross ✔

Option A: Phenotype

Option B: Genotype

Option C: Allele

Option D: Genome

Correct Answer: Genotype ✔

Option A: Gaston

Option B: Recon

Option C: Gene

Option D: Mouton

Correct Answer: Gene ✔

Option A: Gene

Option B: Chromosome

Option C: Citron

Option D: Recon

Correct Answer: Citron ✔

Option A: Episome

Option B: Disome

Option C: Mecrosome

Option D: Peroxisome

Correct Answer: Episome ✔

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 one character ✔

Option A: Occurrence of crossing over

Option B: The crossing over between non homologous chromosomes

Option C: Occurrence of karyokinesis

Option D: The failure of homologous chromosomes to separate during meiosis

Correct Answer: The failure of homologous chromosomes to separate during meiosis ✔

Option A: 1:1

Option B: 1:2

Option C: 2:1

Option D: 3:1

Correct Answer: 1:1 ✔

Option A: Confers

Option B: Mosses

Option C: grasses

Option D: Gymnosperm

Correct Answer: grasses ✔

Option A: They showed one type of flowers

Option B: they belong to the family leguminous

Option C: The seven characters he studied were on different chromosomes

Option D: They have round seeds with lot of proteins

Correct Answer: The seven characters he studied were on different chromosomes ✔

Option A: Mutation

Option B: Genetics

Option C: Genetics

Option D: Hybridization

Correct Answer: Genetics ✔

Option A: History of development of larger biological units

Option B: Cntinuous genetic variation

Option C: Inheritance of acquired characters

Option D: Discontinuous genetic variation

Correct Answer: Inheritance of acquired characters ✔

Option A: Dominance

Option B: Cytoplasm inheritance

Option C: Incomplete dominance

Option D: Chromosomal inheritance

Correct Answer: Dominance ✔

Option A: Cross breeding

Option B: Back crossing

Option C: Self fertilization

Option D: Inbreeding

Correct Answer: Back crossing ✔

Option A: Atavism

Option B: Auxotroph

Option C: Axoneme

Option D: Armor

Correct Answer: Armor ✔

Option A: Heterocyst

Option B: Hetropyenosis

Option C: Hypostasis

Option D: Epistastasis

Correct Answer: Heterocyst ✔

Option A: Single gene may produce multiple effects

Option B: Dominance may be incomplete

Option C: The environment effects the expression of genetic character

Option D: Genetic trails are influence by many genes

Correct Answer: The environment effects the expression of genetic character ✔

Option A: 12

Option B: 24

Option C: 22

Option D: 23

Correct Answer: 23 ✔

Option A: Dominant lethal genes in heterozygous individuals

Option B: Dominant lethal genes in homozygous individuals

Option C: Dominant epistasis

Option D: None of the above

Correct Answer: Dominant lethal genes in homozygous individuals ✔

Option A: 100,000,000 years

Option B: 200,000,000 ears

Option C: 300,000,000 years

Option D: Still occurring

Correct Answer: 200,000,000 ears ✔

Option A: Lamark’s idea on inheritance of acquired character’s

Option B: Mathis’s essay on population

Option C: Mendes’s experiment on pea

Option D: De Vries theory of mutation

Correct Answer: De Vries theory of mutation ✔

Option A: DDT

Option B: X-rays

Option C: Gibberrellic acid

Option D: Auxins

Correct Answer: Gibberrellic acid ✔

Option A: Recessive

Option B: Incomplete dominant

Option C: Mutant

Option D: Dominant

Correct Answer: Incomplete dominant ✔

Option A: There are many alleles of each gene in each call

Option B: There are two alleles of each gene in each cell

Option C: There is only one alleles of each gene present in each cell

Option D: Non3e4 of the above

Correct Answer: There is only one alleles of each gene present in each cell ✔

Option A: Heterogeneous

Option B: Heterozygous

Option C: Homogenous

Option D: Homozygous

Correct Answer: Heterozygous ✔

Option A: One gene pair enhances phenotype expression of another gene pair

Option B: Many gene together control a parucular phenotype

Option C: One pair of gene can completely mask the expression of another gene pair

Option D: One gene pair independently controls a phenotype

Correct Answer: One pair of gene can completely mask the expression of another gene pair ✔

Option A: Mathis

Option B: Mendel

Option C: Darwin

Option D: Haldane

Correct Answer: Mathis ✔

Option A: Watson

Option B: Crick

Option C: Koruna

Option D: Morgan

Correct Answer: Koruna ✔

Option A: Ratio of phenotypes is 3:1

Option B: Ratio of genotypes is 3:1

Option C: Phenotypic ratio corresponds to the genotypic ratio

Option D: None of the above

Correct Answer: Phenotypic ratio corresponds to the genotypic ratio ✔

Option A: Incomplete

Option B: Complete dominance

Option C: Over dominance

Option D: All the above

Correct Answer: All the above ✔

Option A: Incompatible

Option B: Partially fertile

Option C: Sterile

Option D: Fully fertile

Correct Answer: Fully fertile ✔

Option A: 70

Option B: 20

Option C: 90

Option D: 95

Correct Answer: 70 ✔

Option A: Scarification

Option B: Seed risking

Option C: Seed cot removal

Option D: All the above

Correct Answer: Scarification ✔

Option A: Lena sativa

Option B: Nicotine sandarac

Option C: Set aria sphacelata

Option D: Scale cereals

Correct Answer: Nicotine sandarac ✔

Option A: Mutable gene

Option B: Mutator gene

Option C: Recepror gene

Option D: Articulator gene

Correct Answer: Mutable gene ✔

Option A: Van der plank (1963)

Option B: Karpechenko (1927)

Option C: Hull (1945)

Option D: Correns (1900)

Correct Answer: Van der plank (1963) ✔

Option A: Solanaceae

Option B: Cruciferae

Option C: Cucurbitaceae

Option D: Legumunaceae

Correct Answer: Cucurbitaceae ✔

Option A: Beautification

Option B: Seasonal fruit

Option C: Medicinal plant

Option D: Nutritive forage

Correct Answer: Nutritive forage ✔

Option A: Attmann (1889)

Option B: Crick (1953)

Option C: Sressler (1968)

Option D: Avery et al (1944)

Correct Answer: Avery et al (1944) ✔

Option A: Iubreeding

Option B: Out breeding

Option C: Random mating

Option D: Selective mating

Correct Answer: Random mating ✔

Option A: Recon

Option B: Muton

Option C: Cistron

Option D: Complan

Correct Answer: Recon ✔

Option A: Operator gene

Option B: Structural gene

Option C: Regulator gene

Option D: Promotor gene

Correct Answer: Regulator gene ✔

Option A: Low mutation population

Option B: High mutation ratio and small population

Option C: Selective mating and small population

Option D: No migration and large population

Correct Answer: High mutation ratio and small population ✔

Option A: Varies with the age

Option B: Coustant for all organismes

Option C: Constant for particular organism

Option D: None of the above

Correct Answer: Coustant for all organismes ✔

Option A: Chloroplast

Option B: Mitochondna

Option C: Golgi bodies

Option D: RNA

Correct Answer: Mitochondna ✔

Option A: Ribosomes

Option B: Centrosomes

Option C: Microsomes

Option D: Lysosmes

Correct Answer: Lysosmes ✔

Option A: Icygen

Option B: Carbon

Option C: Hybrogen

Option D: Nitrogen

Correct Answer: Hybrogen ✔

Option A: Thymine

Option B: Argenine

Option C: Cystine

Option D: Uracil

Correct Answer: Uracil ✔

Option A: Chromosome number

Option B: RNA

Option C: DNA

Option D: Chromosome structure

Correct Answer: Chromosome number ✔

Option A: Bacterium

Option B: Virus

Option C: Fungus

Option D: Algae

Correct Answer: Virus ✔

Option A: DNA

Option B: RNA

Option C: ATP

Option D: DNA/RNA

Correct Answer: ATP ✔

Option A: Watson and Crick

Option B: Scheiiden and Schwann

Option C: Sarwin and Wallace

Option D: Morgan

Correct Answer: Scheiiden and Schwann ✔

Option A: Plastids

Option B: Ribosomes

Option C: Mitochondria

Option D: Leucoplasts

Correct Answer: Plastids ✔

Option A: Discovery of gene

Option B: Principles of linkage

Option C: heredity theory

Option D: Rediscovery of Mendel’s

Correct Answer: D. Rediscovery of Mendel’s ✔

Option A: Punneu square

Option B: Morgan square

Option C: Mendel square

Option D: Bateson square

Correct Answer: Mendel square ✔

Option A: Allopolyploid

Option B: Autopolyploid

Option C: Aneuploid

Option D: Euploid

Correct Answer: Aneuploid ✔

Option A: Triploid

Option B: Teuaplioid

Option C: Hexaploid

Option D: Oetaploid

Correct Answer: Hexaploid ✔

Option A: Endosperm cell

Option B: Leaf cells

Option C: Cotyledonary cell

Option D: Synergids

Correct Answer: Synergids ✔

A. 10 chromosomes
B. 20 chromosomes
C. 40 chromosomes

Correct Answer: 20 chromosomes ✔

Option A: 8

Option B: 32

Option C: 64

Option D: 120

Correct Answer: 8 ✔

Option A: Produces identical cells

Option B: Restores original number of chromosomes

Option C: Occurs only in somatic

Option D: Doubling of DNA content in the cell

Correct Answer: Restores original number of chromosomes ✔

Option A: Fat synthesis

Option B: Starch synthesis

Option C: Protein synthesis

Option D: Anaerobic respiration

Correct Answer: Protein synthesis ✔

Option A: Flower

Option B: Fruit

Option C: Bud

Option D: Inflorescence

Correct Answer: Inflorescence ✔

Option A: Pith cells

Option B: Cortex cells

Option C: Internodes regions

Option D: Tips of stem & roots

Correct Answer: Tips of stem & roots ✔

Option A: Dominant

Option B: Recessive

Option C: Non-genetic

Option D: Unexpressive

Correct Answer: Recessive ✔

Option A: Self incompatibility

Option B: Male sterility

Option C: Female sterility

Option D: All the above

Correct Answer: Male sterility ✔

Option A: Unmalted potatoes

Option B: Fermented fruit juice

Option C: Unmalted cereals

Option D: Unrefined products of sugarcane

Correct Answer: Unrefined products of sugarcane ✔

Option A: Unexcelled endocarp hair

Option B: Unicelled placenta hairs

Option C: Multicelled endocarpic hair

Option D: Multicelled placental hairs

Correct Answer: Multicelled endocarpic hair ✔

Option A: Root

Option B: Stem

Option C: leaves

Option D: Scale leaves

Correct Answer: leaves ✔

Option A: Gram

Option B: Tomato

Option C: Onion

Option D: all the above

Correct Answer: all the above ✔

Option A: Onion

Option B: Tomato

Option C: Cotton

Option D: Sorghum

Correct Answer: Cotton ✔

Option A: Pollen tube

Option B: Anther

Option C: Style

Option D: Ovule

Correct Answer: Ovule ✔

Option A: Bad odour of soil

Option B: Much sugar

Option C: Sulphur compounds

Option D: Freshy leaves

Correct Answer: Sulphur compounds ✔

Option A: Fruit without pollination

Option B: Seed without fertilization

Option C: fruit without fertilization

Option D: Only seed and no fruit

Correct Answer: fruit without fertilization ✔

Option A: Cowpeas

Option B: Berseem

Option C: Sorghum

Option D: Luceru

Correct Answer: Luceru ✔

Option A: 400 meters

Option B: 800 meters

Option C: 200 meters

Option D: 100 meters

Correct Answer: 400 meters ✔

Option A: Nucleus seed

Option B: Breeder seed

Option C: Foundation seed

Option D: Certified seed

Correct Answer: Breeder seed ✔

Option A: Geneva

Option B: 50 meters

Option C: 200 meters

Option D: 3 meters

Correct Answer: 200 meters ✔

Option A: Imperfect

Option B: Perfect

Option C: Positive

Option D: Negative

Correct Answer: Perfect ✔

Option A: Frankel (1977)

Option B: Bresbaker (1958)

Option C: Hughes and Babceek

Option D: East and Mangelsdref (1925)

Correct Answer: East and Mangelsdref (1925) ✔

Option A: RBD

Option B: SPD

Option C: AD

Option D: LSD

Correct Answer: LSD ✔

Option A: Tall, leafy, high leaf/stem ratio

Option B: Dwarf stature

Option C: Late resistance to disease

Option D: Dwarf, late green

Correct Answer: Tall, leafy, high leaf/stem ratio ✔

Option A: Oat

Option B: Sorghum

Option C: Wheat

Option D: Rice

Correct Answer: Wheat ✔

Option A: Model plant type

Option B: Good plant model

Option C: Ideal plant type

Option D: All the above

Correct Answer: All the above ✔

Option A: Deep root system

Option B: Small waxy and thick leaves

Option C: Sunken, small and less stomata

Option D: All of the above

Correct Answer: All of the above ✔

Option A: Biochemical factors

Option B: Physiological factors

Option C: Morphological factors

Option D: all the above

Correct Answer: all the above ✔

Option A: High aspartic acid

Option B: Waxiness of leaves

Option C: High silica content

Option D: High benzol alcohol

Correct Answer: Waxiness of leaves ✔

Option A: Plasma genes

Option B: Polygenes

Option C: Oligogenes

Option D: All the above

Correct Answer: All the above ✔

Option A: Purple stigma

Option B: Low aspergine

Option C: Red pericarp

Option D: All the above

Correct Answer: All the above ✔

Option A: Race specific

Option B: Oligogenic

Option C: Qualitative

Option D: All the above

Correct Answer: All the above ✔

Option A: Rice

Option B: Wheat

Option C: Barley

Option D: Maize

Correct Answer: Rice ✔

Option A: deVries (1900)

Option B: Morgan (1910)

Option C: Stadler (1928)

Option D: Wright (1791)

Correct Answer: Wright (1791) ✔

Option A: Mutator gene

Option B: Antimutalor gene

Option C: Mutable gene

Option D: Hot spot

Correct Answer: Mutable gene ✔

Option A: Datura

Option B: Rye

Option C: Brassica

Option D: Oat

Correct Answer: Datura ✔

Option A: Nullisomic

Option B: Monosomic

Option C: Trisomic

Option D: Tetrasomic

Correct Answer: Monosomic ✔

Option A: Plant breeder

Option B: Agronomist

Option C: Horticulturist

Option D: Pathologist

Correct Answer: Horticulturist ✔

Option A: Greshof and Doy (1972)

Option B: Tyagi and Prasad (1965)

Option C: Mehta and Upadhya (1960)

Option D: Singh (1960)

Correct Answer: Greshof and Doy (1972) ✔

Option A: Better parent

Option B: Mid parent

Option C: Standard parent

Option D: Popular variety

Correct Answer: Better parent ✔