Types of selection and introduction of plant varieties — task. Science State Board, Class 10.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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[Note: There maybe more than one correct options]

1. Which of the following statements is / are true regarding why crops having improved nutritional quality are developed?

2. Which among the following statements is true about pureline selection?

Pureline is “the progeny of a single individual obtained by self breeding”
In pureline selection, genetic variation is present
Pureline is “the progeny of multiple individuals obtained through cross-breeding”
In pureline selection, genetic variation is absent
Pureline variety has a broader adaptation

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17. Types of selection and introduction of plant varieties