Chez le maïs, la production de pigments de type anthocyanine nécessite l’activité de trois gènes, A, B et D. Le génotype A/_ ; B/_ ; D/_ est coloré (rouge ou violet), alors que tous les autres génotypes conduisent à des grains jaunes. La production de pigment violet à partir du pigment rouge nécessite l’activité d’un allèle dominant Pr d’un quatrième gène.

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step-by-step explanation:

9x

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function