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The mutation is the phenomenon which results in alteration of DNA sequences and consequently results in a change in the

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Important Questions on Principles of Inheritance and Variation

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The mechanism that causes a gene to move from one linkage group to another is called:
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The oil content and quality of groundnut variety were improved by plant breeding techniques. This is an example of
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Golden rice is genetically engineered to have greater content of _________.
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Match the following lists:

  List-I   List-II
  Crop bred by hybridization   Resistance to disease
(A) Wheat (I) Block rot and curl blight black rot
(B) Brassica (II) Mosaic virus, leaf curl
(C) Cauliflower (III) Leaf and stripe rust, hill bunt
(D) Cowpea (IV) White rust
    (V) Bacterial blight

The correct match is:

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Which one of the following is NOT enriched by vitamin C by IARI?

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'Sonalika' and Kalyansona' are the high yielding 'semi-dwarf varieties of wheat, introduced from ________.
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Arrange the following steps in plant breeding in an order
(a) Evaluation and selection of parents
(b) Selection of testing of superior recumbents
(c) Collection of variability
(d) Testing, release, commercialization of new varieties
(e) Cross hybridization among the selected parents

MEDIUM
Choose the correct combinations
I) Pusa swarnim - Brassica - White rust resistance
II) Pusa gaurav - Brassica - Fruit borer resistance
III Pusa sawani - Bhindi - Fruit borer resistance
IV) Pusa sadabahar - Chilli - Leaf curl resistance
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Which of the following is not an objective of biofortification in crops?
HARD

Match the following lists:

  List I   List II
A) Change in single base pair of DNA I) Recombination
B) Deletions of base pairs of DNA II) Genetic map
C) Generation of non-parental gene combination III) Point mutations
D) The frequency of recombination between gene pairs on the same chromosome IV) Frame-shift mutations

The correct match is

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The entire collection of plants having diverse alleles for all genes
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Which one of the following is the classical method of plant breeding?
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Select the incorrect statement on Mutations ? 
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Study the given table and identify a, b, c, d, e and f:

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You have obtained a high-yielding variety of tomato. Name and explain the procedure that ensures retention of the desired characteristics repeatedly in large populations of future generations of the tomato crop.
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Now-a-days agricultural practice is expensive to the farmers as they need to purchase hybrid seeds every year. Which of the following strategies can be employed to overcome this problem?
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In mung bean, resistance to yellow mosaic virus and powdery mildew were induced by:
MEDIUM
The movement of a gene from one linkage group to another is called: