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------------------------------------------------ A horticulturalist wants to produce geraniums with specific characteristics. She knows that the trait of red flowers is governed by the allele R (RR and Rr) and the trait of white flowers is governed by the allele r (rr).

The horticulturalist plans to cross a geranium that is heterozygous for red flowers with a geranium that is true-breeding for white flowers. Which Punnett square best describes this cross?

A. \[
\begin{array}{c|c|c}
& R & r \\
\hline
r & Rr & rr \\
r & Rr & rr \\
\end{array}
\]

B. \[
\begin{array}{c|c|c}
& r & r \\
\hline
R & Rr & Rr \\
r & rr & rr \\
\end{array}
\]

C. \[
\begin{array}{c|c|c}
& R & r \\
\hline
R & RR & Rr \\
R & RR & Rr \\
\end{array}
\]

The horticulturalist plans to cross a geranium that is heterozygous for red flowers with a geranium that is true-breeding for white flowers. Option B Punnett square best describes this cross.

What is Punnett square?

Punnett square is defined as an illustration in the shape of a square that is used to forecast the genotypes of a certain cross or breeding experiment. A square that has been divided into four quadrants is the Punnett square.

Knowing that the red flower must possess at least one dominant allele in order to be red, we may infer that it could either be Rr or RR. All progeny with the genotype Rr would be red if the white geranium (rr) and RR were crossed. On the other hand, if the flower is Rr and it is crossed with rr, the resultant plants will have a split floral coloration, with half having red blooms and the other half having white flowers.

Thus, the horticulturalist plans to cross a geranium that is heterozygous for red flowers with a geranium that is true-breeding for white flowers. Option B Punnett square best describes this cross.

To learn more about Punnett square, refer to the link below:

https://brainly.com/question/27984422

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