To solve this problem on genetic dominance, we will need a punnet square.
Let's let P represent purple-flowered and p represent white-flowered.
We have one purple flowered plant with the alleles PP, and we have one white flowered plant with the alleles pp. Using a punnet square, we can determine the alleles of the offspring.
<u>P</u> <u>P</u>
p| Pp Pp
p | Pp Pp
As we can tell from our punnet square, all of our offspring will have purple flowers. This is because the purple-flower allele is dominant and the white-flowered allele is recessive.
Since each flower has a dominant and recessive allele, they are heterozygous.
Therefore, the solution to this problem is D.
Controls what enters and leaves the cell
The transport of zebra mussels to the US took place involuntarily through the discharge of ballast water from European ships with contaminated cargo, in the 1980s, spreading across the Great Lakes region.
<h3 /><h3>Impacts on the environment</h3>
This freshwater mollusk can negatively impact the environment by filtering out algae that feed native species and clogging up water transport and storage systems.
Therefore, due to its high reproduction rate, zebra mussels spread rapidly and render water systems unusable, generating significant ecological and economic impacts.
Find out more information about zebra mussels here:
brainly.com/question/368887