Tall pea plants are dominant over short pea plants. if there are 200 short plants in the f2 generation from a cross that followed mendel’s methods, about how many plants will be tall in that generation?

Total tall plants

Explanation:

Given ,

Tall plants are dominant over short plants

In F1 generation, homozygous long and short plants will be crossed.

Let "T" represents the allele for tall plants and "t" represents the allele for short plants

Then "TT" will be the genotype of tall plant and "tt" will be the genotype of short plant

So offspring produced in the F1 generation will be,

TT * tt

Tt, Tt, Tt, Tt

That means all the offspring of F1 generation are heterozygous dominant

F2 Generation

In F2 generation , two parents plants with genotype "Tt" will be crossed

thereby producing following offspring

Tt * Tt

TT, Tt, Tt, tt

Out of 4, 3 offspring are heterozygous tall, and only 1 is short plant

Thus, are short plant

let "X" be the total number of plants in F2 generation , then

So, number of tall plants is equal to

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