Although genetics as a scientific discipline is a recent innovation , practical genetics as an empirical activity for producing food plants and domestic animals , collectively called cultigens , is as ancient as the old Stone Age . 9 आनुवंशिकता और कलऋ-ऊण्श्छ्ष्-टिजेन आनुवंशिकता वि&आन की एक नूतन शाखा है , परंतु फसलों तथा पालतू पशुओं के उतऋ-ऊण्श्छ्ष्-पादन में ऋन अनुभवमूलक पद्धतियों का उपयोग किया जाता रहा है वह वऋ-ऊण्श्छ्ष्-यावहारिक आनुवंशिकी पाषाण युग ऋतनी पुरानी है .
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