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This question belongs to Agriculture Genetics And Plant Breeding

Genetics and Plant Breeding

?

The number of three way crosses are

A) $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)\left( {{\text{n}} - 2} \right)}}{2}$$ B) $$\frac{{{\text{n}}\left( {{\text{n}} + 1} \right)\left( {{\text{n}} + 2} \right)}}{2}$$ C) $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)\left( {{\text{n}} - 2} \right)\left( {{\text{n}} - 3} \right)}}{8}$$ D) $$\frac{{{\text{n}}\left( {{\text{n}} - 1} \right)\left( {{\text{n}} + 2} \right)\left( {{\text{n}} - 3} \right)}}{6}$$

Answer & Solution

Correct Answer: Option A

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