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Breeding and Biotechnology — Science STD 10 — Question

Tamilnadu BoardEnglish MediumSTD 10ScienceBreeding and Biotechnology2 Marks
Question
Give two examples of cross-breeding in animals.
✓

Answer

Cross breed of fowls: White Leghorn X Plymouth Rock
↓
Hybrid fowl – yield more eggs

Cross breed of cows : Developed by mating the bulls of exotic breeds and cows of indigenous breeds.
Brown Swiss X Sahiwal
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Karan Swiss – yield 2-3 times more milk than indigenous cows.

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