Description : Mass pedigree selection method of breeding is useful for improvement of — crop a. Self pollinated b. Cross pollinated c. Both a & b d. None of these
Last Answer : a. Self pollinated
Description : Breeding method mostly used for development of disease resistance variety is — a. Pedigree method b. Selection c. Back cross d. Mutation breeding
Last Answer : c. Back cross
Description : Which of the following is related to genetic engineering? (a) Heterosis (b) Mutation (c) Plastid (d) Plasmid
Last Answer : (d) Plasmid
Description : In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called (a) evaluation and selection of parents (b) germplasm collection (c) selection of superior recombinants (d) cross-hybridisation among the selected parents.
Last Answer : (b) germplasm collection
Description : The quickest way to produce homozygous breeding lines from heterozygous parents is through: (a) Half-seed technique (b) doubled haploids (c) Introgression (d) Aneuploidy
Last Answer : (b) doubled haploids
Description : The parent which is used only once in back cross breeding method
Last Answer : Ans. Donor
Description : The phenomenon of Heterosis has been most commercially exploited first in a. Tobacco b. Sugarcane c. Maize d. Wheat
Last Answer : c. Maize
Description : The increased performance of F1 hybrid over its parents is called a. Heterosis b. Crossing over c. Dominance d. Heredity
Last Answer : a. Heterosis
Description : What is meant by selection in conventional plant breeding?
Last Answer : Selection is the process where a breeder selects from a population of plants having desirable characteristics. It is the most ancient and basic procedure.
Description : A plant breeder: waists to develop a disease resistant variety. What should he do first?(a) Hybridisation (b) Mutation (c) Selection (d) Production of crop
Last Answer : (c) Selection
Description : A plant breeder: waists to develop a disease resistant variety. What should he do first? a) Hybridisation b) Mutation c) Selection d) Production of crop
Last Answer : c) Selection
Description : A method of breeding is not appropriate for cross pollinated crops
Last Answer : Ans. Pure line selection
Description : By which method was a new breed ‘Hisardale’ of sheep formed by using Bikaneri ewes and Marino rams? (a) Out crossing (b) Mutational breeding (c) Cross breeding (d) Inbreeding
Last Answer : (c) Cross breeding
Description : What takes longer selective breeding or natural selection?
Last Answer : Need answer
Description : Breeding refers to selection procedure in which the segregating population of self pollinated species is grown without selections
Last Answer : Ans. Bulk
Description : A true breeding plant is (a) one that is able to breed on its own (b) produced due to cross-pollination among unrelated plants (c) near homozygous and produces offspring of its own kind (d) always homozygous recessive in its genetic constitution.
Last Answer : c) near homozygous and produces offspring of its own kind
Description : The new varieties of plants are produced by (a) introduction and mutation (b) selection and introduction (c) selection and hybridization (d) mutation and selection.
Last Answer : (c) selection and hybridization
Description : Industrial melanism is an example of (a) mutation (b) Neo-Lamarckism (c) Neo-Darwinism (d) natural selection.
Last Answer : (d) natural selection.
Description : The desired varieties of economically useful crops are raised by (a) vemalisation (b) mutation (c) natural selection (d) hybridisation
Last Answer : (d) hybridisation
Description : Which of the following(s) is/are found in Genetic Algorithms? (i) evolution (ii) selection (iii) reproduction (iv) mutation (a) i & ii only (b) i, ii & iii only (c) ii, iii & iv only
Last Answer : (a) i & ii only
Description : 27. A ‘single step-large mutation’ is known as ... b) Branching descent b) Natural Selection c) Saltation d) Gene Migration
Last Answer : c) Saltation
Description : 7. A ‘single step-large mutation’ is known as ... a) Branching descent b) Natural Selection c) Saltation d) Gene Migration
Description : _______________ acts to inhibit reproductive isolation. A) Mutation B) Natural selection C) Genetic drift D) Gene flow
Last Answer : D) Gene flow
Description : The desired varieties of economically useful crops are raised bya) Vernalization b) Mutation c) Natural selection d) hybridisation
Last Answer : d) hybridisation
Description : Single seed descent method of selection is a modification of- a. Mass selection b. Pure line selection c. Pedigree method d. Bulk method
Last Answer : d. Bulk method
Description : When heterosis estimated over the superior or better parent
Last Answer : Ans. Heterobeltiosis
Description : Term ‘Heterosis’ was given by
Last Answer : Ans. Shull
Description : Just as the division of cytoplasm is called cytokinesis, the division of nucleus is called (a) Heterosis (b) Mitosis (c) Meiosis (d) Karyokinesis
Last Answer : Ans:(d)
Description : The process of cell division can take place by (a) Heterosis (b) Fusion (c) Mitosis (d) None of these
Last Answer : Ans:(c)
Description : The phenomenon of Heterosis has been most commercially exploited first in...... (A) Rice (B) Wheat (C) Maize (D) Sugarcane (E) Tobacco
Last Answer : (D) Sugarcane
Description : When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called (a) heterosis (b) transformation (c) splicing (d) metamorphosis.
Last Answer : (a) heterosis
Description : Biofortifieation is a - (1) method of breeding crops to increase their nutritional value (2) strategy to combat unwanted nutrients in plants (3) method of developing resis-tance to insect pests (4) method of plant breeding for disease resistance
Last Answer : (1) method of breeding crops to increase their nutritional value Explanation: Biofortification is the breeding crops to increase their nutritional value. This can be done either through conventional ... are growing, rather than having nutrients added to the foods when they are being processed.
Description : Biofortification is a (1) method of breeding crops to increase their nutritional value (2) strategy to combat unwanted nutrients in plants (3) method of developing resistance to insect pests (4) method of plant breeding for disease resistance
Last Answer : method of breeding crops to increase their nutritional value
Description : Bulk population breeding is suitable for a. Fruit crops b. Vegetable crops c. Flower crops d. Small grain crops
Last Answer : d. Small grain crops
Description : What is the quickest method for separation of proteins?
Last Answer : HPLC.
Description : What is cross breeding in poultry? -Biology
Last Answer : answer:
Description : When Mendel used pea plants true breeding for yellow peas or green peas in an experiment. All the offspring produced from this cross were yellow. When the offspring were allowed to self pollinate one?
Last Answer : yyYy
Description : What were Mendel's results when he made a cross between breeding tall plants and short plants?
Last Answer : Feel Free to Answer
Description : What is F4 generation in cross breeding?
Description : If you made a Punnett square showing Gregor Mendel's cross between true-breeding tall plants and truebreeding short plants, the square would show that the offspring had a. the genotype of one of the ... . a genotype that was different from that of both parents. d. the genotype of both parents.
Last Answer : c. a genotype that was different from that of both parents.
Description : How the new states are generated in genetic algorithm? a) Composition b) Mutation c) Cross-over d) Both Mutation & Cross-over
Last Answer : d) Both Mutation & Cross-over
Description : One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During segregation of F2 progenies that mutation is found in (a) one-third of the progenies (b) none of the progenies (c) all the progenies (d) fifty percent of the progenies.
Last Answer : (b) none of the progenies
Description : Which of the following cause new emerging infectious diseases? a. mutation b. recombination c. cross host ranges d. A-C are correct
Last Answer : d. A-C are correct
Description : A method of breeding is appropriate for improvement of good variety.
Last Answer : Ans. Back cross method
Description : A method of breeding for wheat
Last Answer : Ans. Pure line selection method
Description : 1. Biofortification is a method of breeding crops for a) Increasing the amount of production b) To produce disease resistant variety c) To improve the nutritional quality d) To produce high amount of vitamin
Last Answer : c) To improve the nutritional quality
Description : Repeated crossing of hybrid progeny back to one of its parents is called as — a. Back cross b. Top cross c. Recurrent cross d. Double cross
Last Answer : a. Back cross