Brown heart disease is caused due to deficiency of
A. Boron
B. Iron
C. Molybdenum
D. Copper
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Match the following columns:
Column I (Theory)
Column II (Related Scientist)
a. Theory of epigenesis
1. Charles Darwin
b. Theory of pangenes
2. Wolf
c. Theory of acquired character
3. August Weismann
d. The germplasm theory
4. Lamarck
A. a-1, b-2, c-3, d-4
B. a-3, b-4, c-1, d-2
C. a-2, b-1, c-4, d-3
D. a-4, b-3, c-2, d-1
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Reciprocal recurrent selection is used when a character is governed by
A. Additive genes
B. Non-additive genes
C. Both A and B
D. None of the above
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Consider the following statements regarding synthetic varieties
1. Parental materials are always inbred lines.
2. Open pollinated materials are also used as parental lines.
3. There is no limit on the number of parental lines used.
4. Parental lines are always tested for their combining ability.
Which of the statements given above is/are correct?
A. 1 and 3
B. 2 and 4
C. 1 and 4
D. 3 and 4
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Emasculation of flower is necessary for hybridization in
A. Male sterile plants
B. Self pollinated plants
C. Self incompatible plants
D. Dioecious plants
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The example of blending of alleles is paramutation in
A. Wheat
B. Maize
C. Rice
D. Cotton
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In hexaploid wheat the haploid(n) and basic (x) no. of chromosomes are
A. n = 21, x = 7
B. n = 7, x = 21
C. n = 21, x = 21
D. n = 14, x = 7
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The seeds don't require certification are
A. Breeder seed
B. Certified seed
C. Nucleus seed
D. Foundation seed
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The F2 ratio in complementary gene action is
A. 9 : 3 : 4
B. 9 : 7
C. 15 : 1
D. 18 : 3
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Homozygous line developed through repeated selfing in cross pollinated crop is
A. Pureline
B. Inbred
C. Clone
D. Mutant
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The first ever inter generic cross was successfully performed between bamboo and sugarcane by
A. T. S. Verma
B. T. S. Venkatraman
C. R. B. Singh
D. R. S. Paroda
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Protandry are found in
A. Maize
B. Sugarbeet
C. Both A and B
D. Bajra
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Mutant cereal variety of cereal is
A. Sonalika
B. Kiran
C. Jagannath
D. Jaya
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Choose the wrong one.
A. The cdc gene products are required for normal cell cycle
B. The cdc gene are needed for structural purposes
C. They are involved in regulation of cell cycle
D. The cdc mutants are temperature insensitive
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The plasmalemma and the tonoplast in an osmotic system function as
A. Permeable membranes
B. Impermeable membrane
C. Semipermeable membrane
D. Unit membranes
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Most of the mutations are
A. Recessive
B. Harmful
C. Germinal
D. All of these
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Which of the following is antitranspirant?
A. Phenyl Mercuric Acetate (PMA)
B. Abscisic Acid (ABA)
C. Both A and B
D. Malic Hydrazide (MH)
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If the DNA of a species has the mole fraction of G + C = 0.48, the mole fraction of A will be
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A cybrid is a
A. Sexual hybrid
B. Hybrid formed by cell division
C. Plant formed by tissue culture
D. Synonymous to hybrid
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The term Genetics was given by
A. Johansen
B. Bateson
C. Waldayer
D. Muller
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