PRESENTED BY: Pawan Kumar NagarReg. no.: 04-2690-2015M.Sc.Horti.

MCQ’s of Plant Breeding

1. Father of Plant Tissue Culture is .. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

a)2. Father of Botany is.. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

b)3 . Father of Genetics is .. a) Haberlandt b) Theophrastus c) Mendel d) Aristotle c)4. Father of Zoology is .. a) Haberlant b) Theophrastus c) Mendel d) Aristotle d)

5. Segregation Occur During.. a) Meiosis -1 b) Meosis -2 c) Mitosis -1 d) Mitosis -2

a)6. The Longest Mitotic Phase is .. a) Anaphase b) Metaphase c)Prophase d) Telophase

c) 7. Physical Basis of Life is .. a)Matrix b) Protoplasm c) Cell d) None

b)8. The Site of Protien Synthesis is. a) Ribosome b) Lysosome c) Glyoxisome d) Peroxysome

a)

9. Fat Metabolism occur in.. a) Ribosome b) Lysosome c) Glyoxisome d) Peroxysome

c)10. Alternative form of Gene is Known as… a) Pairing of Gene b) Gene Cloning

c) c) Allele d) None11. Theory of Natural Selection Was Proposed by… a) Williums b) Darwin

b) c) Lemark d) None12. A Gene Affecting More than One Character is known as.. a) Multiple gene b) Initial gene

c) c) Plieotropy d) Modifier Gene

13. Tift -23 A induce Male Sterility in… a) Pearl millet b) Sorghum

c) c) Both d) None14. Theory of Acquired Characteristics Was Proposed by… a) Williums b) Darwin c) Lamark d) None

c)15. Pure line is a… a) Homozygous-Homogenous b) Homozygous-

Heterogenous a) c) Heterozygous-Homogenous d) Heterozygous-

Heterogenous16. A Hybrid is a… a) Homozygous-Homogenous b) Homozygous-

Heterogenous c) c) Heterozygous-Homogenous d) Heterozygous-

Heterogenous

17. Cell is discovered by- a) Robert hook b) Robert brown

a) c) Willium Thomus d) None of these18. DNA- Synthesis Takes Place during the Phase… a) S Phase b) G-1 Phase

a) c) G-2 Phase d) None 19. Tetrad Formation Takes place in… a) Prophase b) Anaphase

a) c) Metaphase d) Telophase20. Chaismata Formation Takes place in… a) Prophase b) Anaphase

a) c) Metaphase d) Pachytene

21. Glycolysis occurs in…. a) Mitochondria b) Cytoplasm

b) c) Grana d) None 22. Glycolysis occurs in…. a) Mitochondria b) Cytoplasm

b) c) Grana d) None 23. Monosomic Indicates- a) 2n – 1 b) 2n + 1

a) c) 2n – 2 d) 2n + 224. Trisomic Indicates- a) 2n – 1 b) 2n + 1

b) c) 2n – 2 d) 2n + 2

25. Nullisomic Indicates- a) 2n – 1 b) 2n + 1

c) c) 2n – 2 d) 2n + 226. Tetrasomic Indicates- a) 2n – 1 b) 2n + 1

d) c) 2n – 2 d) 2n + 227. Chaismata Seen takes place in… a) Prophase b) Diplotene

b) c) Metaphase d) Pachytene28. Test cross indicates… a) F1 X Recessive b) F1 X Parents

a) c) F1 X Dominant d) None

29. Cell Theory is given by… a) Beer’s & Sweeden b) Swan & Sweeden

c) c) Schlciden & Sweeden d) Darvin30. Prokaryotes have ribosome.. a) 70S b) 80S

a) c) Both d) None 31. Eukaryotes have ribosome.. a) 70S b) 80S

b) c) Both d) None32. Centrioles are absent in.. a) Plant cell b) Human cell

a) c) Both d) None

33. Function of Chromosome in transmission of heredity is given by..

a) Darvin b) Sweeden d)

c) Lamark d) Morgon 34. Apomixis is the Development of seed without.. a) fertilization b) pollination cell

a) c) Both d) None35. Parthenocarpy is the Development of ……. Without

fertilization a) Fruit b) Seed

a) c) Embryo d) none 36. Back cross indicates… a) F1 X Recessive b) F1 X Parents

b) c) F1 X Dominant d) None

37. Colchicine is discovered by a) Blackslee b) Sweeden

a) c) Lamark d) Morgon 38. Concept of ideotype is given by a) Lamark b) Darvin

d) c) Shull d) Donald 39. Heterostyly increase.. a) Cross pollination b) Self pollination

a) c) Often cross pollination d) None 40. Term Genotypes is coined by… a) Johnsen b) Johnnsen

b) c) Morgen d) Donald

41. Monohybrids have phenotypic ratio.. a) 3:1 b) 1:2:1

a) c) 3:1 d) 1:9:7 42. DNA contains following number of nitrogenous base

a) One b) Two c) c) Four d) Ten

43. Animal and plant cell can be differentiated by a) Conductivity b) Size c) c) Presence or absence of cell wall d) Shape

44. In temperate countries, sugar is generally obtained from which of the followingcrops a)Maple b) sugar beet b) c) Wheat d) Sugarcane

45. The idea of particulate nature of inheritance was given by a) Darwin b) Mendel b) c) Jones d) Bateson

46. Cultivated rice Oryza sativa has the following number of cromosomes a) 2n =32 b) 2n =20 c) c) 2n =24 d) 2n =18

47. In the presence of sunlight CO2 and H2O (with the help of chlorophyll) andconverted in to carbohydrate, this is known as a) Photosynthesis b) Respiration a) c) Metabolism d) Solar radiation

48. Soil productivity takes in to account the following a) Soil structure b) Soil moisture c) c) Soil fertility d) Soil fertility and productivity

49. If chromosome compliment of two diploid species is combined in one, the resultspecies would be a) Amphidiploid b) Haploid a) c) Monogenic d) Polygenic

50. Alternate form of gene at the same locus are referred to as a) Allele b) Plastid a) c) Dominant d) Chromosome

51. Sequence of growing crops in a piece of land is known as a) Crop insurance b) crop rotation b) c) Crop production d) Crop management

52. India has to provide for its population a) 2 billion b) 1 billion b) c) 600 million d) 1 million

53. In diploid species generally a following number of the chromosomes are involved in the pollen mitosis a) 4n b) 2n c) c) 1n d) 3n

54. Sulphur fungicides can be freely used on all vegetable except the following a) Beans and peas b) Okra d) c) Root vegetable d) Cucurbits

55. Karnal bunt is a serious disease of a) Apple b) Tomato c) c) Wheat d) Mung

56. Zinc is required for the synthesis of a) Tryptophane b) Sugar a) c) Fats d) Proteins

57. Contour system of orchard planting is generally followed in a) Saline soils b) U.P. c) c) Hills d) Punjab

58. NARS refers to a) National Agricultural Research Streams d) b) National Agricultural ayurvedic System c) National Agricultural Review System d) National Agricultural Research System

59. Crossing over during meiois results in a) Breaking linkage b) Promoting linkage a) c) Help mutation d) None of these

60. The simplest measure of variability in data set is a) Range b) Mean a) c) Mode d) Median

61. India has to provide for its population a) 2 billion b) 1 billion b) c) 600 million d) 1 million

62. The frist artificial plant hybrid was produced by a) Koelreuter b) Mendel c) c) Thomus fairchild d) Shull

63. Fairchild’s mule was produced from a cross between a) carnation x sweet wilium b) sweet wilium x carnation b) c) carnation x tobacco d) None

64. Fairchild produced first artificial hybrid in a) 1777 b) 1717 b) c) 1822 d) 1872

65. Louis de Vilmorin worked in a) Italy b) USA c) c) france d) Germany

66.The pureline theory first proposed in a) 1893 b) 1756 c) c) 1903 d) 1965

67. Stamens in flower describes by a) Grews b) Knight a) c) Camararius d) Gross

68. Khesari contains a neurotoxic compound is a) eurasic acid b) BOAA b) c) saponin d) glucosides

69. Rice Varieties IR-8 7 & TN-1 Louis introduced in india during a) 1960 b) 1966 b) c) 1958 d) 1950

70. The Number of National Bureau under ICAR is a) 4 b) 6 b) c) 8 d) 12

71. The father of Indian green revolution is a) swaminathan b) B.P.Pal a) c) Borlog d) Vergis curian

72. Mass selection is always based on a) Genotypic b) Phenotypic b) c) Heritibility d) Progeny test

73. The Number of National Bureau under ICAR is a) 4 b) 6 b) c) 8 d) 12

74. The “Veeri” series of wheat varieties developed by a) S.Rajaram b) N.E.Borlaug a) c) Swaminathan d) Markende

75. CIMMYT is located at… a) Phillippines b) Mexico b) c) Syria d) Columbia

76. Taichung Native I was developed in a) China b) IRRI c) c) Taiwan d) Japan

77. The Number of National Research Centre under ICAR is a) 40 b) 56 c) c) 28 d) 37

 78. Between mitotic divisions, the cell is in  a) G0  b) G1  d)

c) G2  d) S phase

79 . Which of the following is a carrier hosts for new genes? a) E.coli b) Bacteriophage b) c) Nucleus d) Transplanted Organs

80. Francis Jacob and Monod Proposed a) Lock and Key Hypothesis b)Gene for Protein Synthesis c) c) Operon Hypothesis d) Gene for protein synthesis

81. Which of the following vector is suitable for DNA sequencing a) EMBL b)PBR 322 c) c) M 13 d) Lambda

82. The organelle that functions in the breakdown of cells and tissues is the a) Episomes b) Mitochondrio d) c) Centrosomes d) Lysosomes

83. Dwarfing gene in wheat is : a) Nif – gene b) Norin b) c) Dee – gee – woo – gen d) Proteina

84. Origin place of soybean is a)Brazil b) Mexico c) c) China d) Peru

85. _______estimated that incompatibility occurs in more than 3,000 species among 20 families of the flowering plants:

a)East b) Garber c) c) Highs d) Winton

86. _______provides the best documented example of long time effects of selection:

a) Sugarcane b) Sugar beet b) c) Sweet corn d) Sweet maple

87. 2n denotes: a) Number of homozygote produces by selfing a F1 b) b) Number of types of gametes produced by F1 c) Number of types of heterozygote produced by selling F1 d) None of the above88.______ in Ladino clover is governed by two dominant alleles, one

produces cyanogenic glycoside, while the other releases the enzyme to catalyze its release from gloycoside:

a) Oxalic acid b) IAA c) c) HCN d) NAA

89.------- are example of protoandrous species. a) Avocado b) walnut c)

c) Carrot d) None of thes

90. Origin of Species by means of Natural Selection' was given by: a) Lamark b) Linnaeus

c) c) Charles Darwin d) Erasmus

91. Radish' is an example of: a) Fusiform root b) Napiform root

a) . c) Conical root d) Tuberous root

92. A character dermined by many genes and does not show discrete variation is known as:

a) Qualitative character b) Oligogenic character a) c) Quantitative character d) Multiple-allelic character

 93. A cell or an organism having one chromosome pair in addition to

the normal somatic compliment of the species is: a) Monosomic b) Nullisomic c)

c) Tetrasomic d) Trisomic

94. A complex of communities of plants and animals of a region existing under identical climatic conditions is called as: a) Biome b) Ecosystem a)

c) Ecological complex d) Environment

95.A condition in which pollination and fertilization take place in an unopened flower is termed as:

a) Homogamy b) Apogamy d)

c) Polygamy d) Cleistogamy 96. A criss-cross inheritance is shown by:

c) a) Sex-influenced character b) Polygamy c) Sex-linked character d) Sex-quantitative character 97. A cybrid is: a) A sex hybrid b) A hybrid formed by cell fusion b) c) A plant produced by cell culture d) Synonym to hybrid 98. A fruit, which develops from an inflorescence, is known as: a) Simple fruit b) Aggregate fruit

c) c) Composite fruit d) None of these

 99.A generative nucleus in the male gametophyte divides _____ to form

two male gametes a) Mitotically b) Meiotically a) c) Mitotically and Meiotically d) None of these100.A homozygous line developed by self-fertilization in a cross-

pollinated crop is termed as: a) Pureline b) Inbred b) c) Clone d) Mutant101.A maintainer line is: a) Male fertile and can restore fertility d) b) Male sterile but can restore fertility c) Male sterile but cannot restore fertility d) Male fertile but cannot restore fertility102. A male gametophyte in angiosperms contains: a) One gametes only two male gametes only c) b) Two male gamete only c) Two male gametes and one tube nucleusnucleus d) One male gamete and one tube nucleus

103. A mendelian population means: a) Self-pollinated population b) Inbred population

c) c) Random-mating population d) Hybrid population 104. A method of breeding most commonly used when the desired

variation is required to be induced in a vegetatively propagated crop is:

a) Polyploidy b) Pedigree method of breeding a)

c) Mutation breeding d) Backcross method of breeding105. A plant bearing both male and female flowers is said to be: a) Dioecious b) Monoecious b) c) Polygamous d) None of above  106. A plant with 2n = 20 will have how many linkage group: a) 20 b) 40 c) c) 10 d) 5  

107. A restorer gene is present in: a) Nucleus b) Cytoplasm a) c) Both a) & b) d) None of these  108. A state of meiotic cell division when homologous chromosomes

separate and move to different poles is known as: a) Metaphase I b) Anaphase I b) c) Telophase I d) Anaphase II 109.According to position of the ovule within the ovary, an ovule may

be: a) Ascending b) Pendulous d) c) Suspended d) All of the above  110. Adjustment of individual to their environment by mean of special

structures or of function of spoken of: a) Mutation b) Variation d) c) Heredity d) Adaptation

111. Alternative forms of a gene is known a: a) Mutation b) Gamete c) c) Allele d) Genotype 112. Breeder seed is the progeny of: a) Foundation seed b) Registered seed c) c) Nucleus seed d) Certified seed 113. Foundation seed is the progeny of: a) Breeder seed b) Registered seed

a) c) Nucleus seed d) Certified seed 114. In sunflower, production of foundation seed requires an isolation

distance of (metres): a) 200 b) 400 b) c) 600 d) 800

115. Initial seed of an improved variety is called: a) Foundation seed b) Registered seed c) c) Nucleus seed d) Certified seed 116.Physical purity of 95% is permissible for the foundation and

certified seed of: a) Soya bean b) Groundnut d) c) Spinach d) Carrot 117. Production of breeder seed in cotton requires an isolation

distance of: a) 20m b) 30m c) c) 50m d)75m  118. Plant Breeders' Rights are operating in: a) Germany b) Denmark d) c) Netherlands d) All of the above

119. Seed certification requires: a) An improved variety b) Genetic purity d) c) Physical purity d) All of the above 120. Freedom from inert matter and defective seeds: a) Genetic purity b) Physical purity b) c) Defective purity d) Normal purity 121.International Crop Improvement Association (ICIA) in ______

classified seed into different categories: a)1964 b)1946 c) c)1963 d)1972 122. Presently ICAR has ______ breeder seed production units: a) 45 b) 54 b) c) 92 d) 57

123. .______ deteriorates drastically upon inbreeding: a) Carrot b) Okra a) c) Brinjal d) Broccoli 124. In 1876 Coffee rust comes in india from a) japan b) Ceylon b) c) S-Africa d) Sri lanka  125. Recalcitrant seed are produced by a) Mango b) Rubber

d) c) Coffee d) All 126. Germplasm Collection of which crop is maintain at

Senegal(Africa) a) Rice b) Sorghum d) c) Perlmillet d) Ground nut

127. IR36 Variety of rice introduced from a) Phillipines b) Africa a) c) japan d) Taiwan  128. Pusa Ruby Later introduced from (After Crossing) a) USA b)Japan a) c) China d) Ireland 129. In India Germplasm collection of Groundnut is Maintained at a) Junagarh b) Lucknow a) c) Ludhiana d) Bangluru  130. In India Germplasm collection of Sugarcane is Maintained at a) Coimbatore b) Florida a) c) Ludhiana d) Bangluru

131. The World collection of sweet potato is maintained at a)India b) New Zealand b) c) Austria d) China 132. IITA maintained Germplam collection of a) Banana,Rice,Vigna b) Potato a) c) Banana,Rice d) Banana Vigna 133. Tobacco germplasm collection is maintained at a) Rajamundry b) Dharwar a) c) New Delhi d) Patna 126. Rice germplasm collection is maintained at a) Cuttak b) Dharwar a) c) New Delhi d) Hyderabad 134. In India exotic collection of germplasm prefix as a) EC b) IC a) c)EG d) IW

135. Cotton Technological Research Laboratory was established in a) 1959 b) 1969

c) c) 1966 d) 1963 136. In Which of the following the segregating generation are

space planted a) Bulk and SSD b) Pedigree & Backcross b) c) Pedigree &Bulk d) None 137. Father of Plant Tissue Culture is .. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

a)138. Father of Botany is.. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

b)

139. Father of Genetics is .. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

c)140. Father of Zoology is .. a) Haberlant b) Theophrastus c) Mendel d) Aristotle

d)141. Segregation Occur During.. a) Meiosis -1 b) Meosis -2 c) Mitosis -1 d) Mitosis -2

a)142. The Longest Mitotic Phase is .. a) Anaphase b) Metaphase c)Prophase

143. Physical Basis of Life is .. a)Matrix b) Protoplasm c) Cell d) None

b)144. The Site of Protien Synthesis is. a) Ribosome b) Lysosome c) Glyoxisome d) Peroxysome

a)145. Fat Metabolism occur in.. a) Ribosome b) Lysosome c) Glyoxisome d) Peroxysome

c)146. Alternative form of Gene is Known as… a) Pairing of Gene b) Gene Cloning

(c) c) Allele d) None

147. Theory of Natural Selection Was Proposed by… a) Williums b) Darwin

b) c) Lemark d) None148. A Gene Affecting More Than One Character is known as.. a) Multiple gene b) Initial gene

c) c) Pleitropy d) Modifier Gene149. Tift -23 A induce Male Sterility in… a)Pearlmillet b) Sorghum

c) c) Both d) None150. Theory of Acquired Characteristics Was Proposed by… a) Williums b) Darwin c) Lamark d) None

c)

151. Pure line is a… a) Homozygous-Homogenous b) Homozygous-

Heterogenous a) c) Heterozygous-Homogenous d) Heterozygous-

Heterogenous 152. A Hybrid is a… a) Homozygous-Homogenous b) Homozygous-

Heterogenous c) c) Heterozygous-Homogenous d) Heterozygous-

Heterogenous153. Cell is Discovered by- a) Robert hook b) Robert brown

a) c) WilliumThomus d) None of these154. DNA- Synthesis Takes Place during the Phase… a) S Phase b) G-1 Phase

a) c) G-2 Phase d) None

155.Tetrad Formation Takes place in… a) Prophase b) Anaphase

a) c) Metaphase d) Telophase156. Chaismata Formation Takes place in… a) Prophase b) Anaphase

a) c) Metaphase d) Telophase157.The concept of dirty crop multiline approach was suggested by a) Bourlaug b) Marshall

b) c) Brigs d) Hayes 158. The term modified-pedigree method first used by a) Gardner b) Palmer

b) c) Hayes d) Briggs 

159. The term “Boom and Bust” cycle suggested by a) Marshall b) East

c)

c) Pristley d) Borlaug160.what is the prerequisite for crop improvement a) Genetic variation b)Vigour

a) c) Sexual reproduction d) none161. The Father of golden revolution is a) Marshall b) East

d)

c) Pristley d) Borlaug 162. The current number of Agricultural university in india a) 56 b) 64

b) c) 72 d) 48

163. IARI was granted becomes deemed university by the UGC in

a) 1952 b) 1958 b)

c) 1962 d) 1998164. C.A.Barber famous for his work on a) soyabean b) sugarcane

b) c) Cotton d) Bhatnagar165. The Frist commercial hybrid of bajra was developed by a) Atwal b) sarkar

a) c) Gill d) Maitry166. the number of central agricultural universities in india is a)1 b) 2

b) c) 3 d) 4

167. Indian canes are a) S.spontaneum b) S.barberi

c) c) S.officinerum d) S.sinense168. The Frist hybrid of Cotton was developed by a) Patel C.T. b) sarkar

a) c) Gill d) Maitry169. The term nobilization is related to a) cotton b) Sugar beet

c) c) sugar cane d) Mustard170. The concept of coordinated research project is develop in

relation to a) maize b) Soybean

a) c) Potato d) Mustard

171. Indian canes are a) Poor yielding b) High Yielding

c) c) Poor yielding with low sugar d) sensitive to low

temperature172. The frist pigeon pea hybrid is a) Co-1 b) ICPH-2

d) c) ICPH-4 d) ICPH-8173. “A History of ICAR is written by a) M.S. Randhawa b) B.P.Pal

a) c) Swaminathan d) Chadda174. The Frist hybrid of Cotton was released by GAU in a) 1970 b) 1972

a) c) 1982 d) 1960

175. The Frist commercial hybrid of bajra was release in a) 1970 b) 1979

d) c) 1989 d) 1965 176. IIHR is located at a) Hyderabad b) Bangluru

b) c) Cochin d) Coimbatore177. Central soil Salinity research institute is located at a) Karnal b) Bhubneswar

a) c) Lucknow d) Cochin178. Vivekanand Laboratory was shifted to almora in a) 1970 b) 1970

d) c) 1989 d) 1936

179. Central Tuber Crop Research Institute is located at a) Karnal b) Bhubneswar

d) c) Lucknow d) Coimbatore 180. In Wheat rht gene derived from a) Norin 10 b) Tomb Thumb

b) c) Kalyan sona d) Norin 8181. ARS was initiate due to the efforts of a) Swaminathan b) Hanchial

b) c) B.P. Pal d) S.A. Hydery182. ARS was started in a) 1970 b) 1975

b) c) 1983 d) 1973

183. ARSB was established in a) 1970 b) 1975

d) c) 1983 d) 1973 184. Cotton Technological research laboratory is located at a) Matunga b) Hissar

a) c) Jammu d) Patiala185. National seeds corporation established in a) 1963 b)1968

a) c) 1999 d) 1984 186. IIHR established in a) 1963 b)1968

d) c) 1999 d) 1984

187. CARI for Andman Nicobar group of Iceland was established in

a) 1936 b)1978 b)

c) 1999 d) 1984188. Non conventional oil consist of a) rice bran oil b) cotton seed oil

d) c) oil from tree seed d) All189. Which colour Tag issued for breeder seed a) White b) Purple

c) c) Yellow/golden d) Blue190. Which colour Tag issued for Foundation seed a) White b) Purple

a) c) Yellow/golden d) Blue

191. Which colour Tag issued for Certified seed a) White b) Purple

d) c) Yellow/golden d) Blue192. Conventional hybrids are represented by a) Single cross b) Double cross

d) c) Three way cross d) All of these193. The maximum heterosis is present in a) Single cross b) Double cross

a) c) Three way cross d) All of these194. ICTA is responsible mainly for improvement of a) Cassava and Beans b) Cassva and Rice

a) c) Soybean and Cassava d) None of these

195. Thr term yellow revolution is related to production of a) oil seed crops b) Fisheries

a) c) Tomato d) Food grains196. ICRISAT is established in year a) 1936 b)1972

b) c) 1970 d) 1984197. The grow more food inquiry committee comes in the

existence a) 1948 b)1978

c) c) 1952 d) 1954198. The indian society of seed technology established in a) 1936 b)1971

b) c) 1999 d) 1984

199. WTO is established at a) Canada b) Singapur

c) c) Geneva d) New Jersey200. “Texamaty” rice was patented by which company a) Monsanto b) Ricetek

b) c) Agracetus d) Delta201. Triticale is a a) Manmade cereal b) Naturally developed

cereal c) Hexaploids species d) Both a & c202. The process of quarantine takes at NBPGR at least a) 2 weeks b) 3 weeks

b) c) 1 week d) 4 weeks

203. Potato germplasm collection maintained at a) Karnal b) Shimla

b) c) Lucknow d) Cochin204. Flag smut of wheat come into india from a) S- Africa b) Sri lanka

d) c) France d) Australia205. The Calcutta Botanical garden established in year a) 1748 b)1778

d) c) 1752 d) 1781206. In IARI, the Diviusion of plant introduction is created in a) 1942 b)1961

b) c) 1952 d) 1954

207. Germplasm is also called as a) gene pool b) genetic resources

b) c) gene bank d) world collection208. In 1900,Potato moth comes in india from a) S- Africa b) Itly

b) c) France d) Australia209. TN 1 Rice was introducd from.. a) Tokyo b) Taiwan

c) c) washington d) Mosambique 210.Masking gene producing which phenotypic ratio

c) a) 15:1 b)13:1 c)12:3:1 d)9:3:4