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In his 1865 publication Mendel reported crosses covering characteristics numbering:
A5
B9
C7
D3
Answer & Solution
Correct answer: C. 7
1. Each characteristic had two contrasting traits.
2. He tracked them all across generations.
3. There were 7 characteristics.
_Source: OpenStax Biology 2e, Chapter 12, Mendel's Experiments and Heredity._
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