in pea plants, tall plant height is dominant over short plant height. if there are 200 short plants in the…

in pea plants, tall plant height is dominant over short plant height. if there are 200 short plants in the f2 generation from a cross that followed mendels methods, about how many plants will be tall in that generation?\n200\n300\n600\n1,000

in pea plants, tall plant height is dominant over short plant height. if there are 200 short plants in the f2 generation from a cross that followed mendels methods, about how many plants will be tall in that generation?\n200\n300\n600\n1,000

Answer

Explanation:

Step1: Recall Mendelian ratio

In a monohybrid cross following Mendel's laws, the F2 - generation phenotypic ratio of dominant to recessive is 3:1.

Step2: Set up proportion

Let the number of tall plants be $x$. The ratio of tall to short plants is $x:200$, and the expected ratio is 3:1. So we have the proportion $\frac{x}{200}=\frac{3}{1}$.

Step3: Solve for $x$

Cross - multiply: $x = 3\times200$. $x=600$.

Answer:

600