# Basic Genetics

Biology Level 2

The above picture shows punnet square for mono hybrid cross, involving the trait : colour of pea pod.

If we draw a punnet square for an $$n$$-hybrid cross ( A cross between two organisms, where $$n$$ traits are considered ), how many unit squares does it contain ?

If the answer is of the form $$a^{bn}$$ for positive integers $$a,b > 1$$ , enter $$(a+b)$$.

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