alleryA line showing stable trait expression over generations is called:
ACross-breeding
BHalf-breeding
CBack-breeding
DTrue-breeding
Answer & Solution
Correct answer: D. True-breeding
1. Such a line has undergone continuous self-pollination.
2. Its traits are then reliably passed on.
3. It is called a true-breeding line.
_Source: syllabus Biology, Chapter 5, Principles of Inheritance and Variation._
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