The anser is D) Plastids in roots cells are large and designed to store water for later use.
<span>A. can start in many different places on a sequence at the same time. </span>
White blood cells increase as they are the cells that destroy pathogens
What Mendel did according to the illustration would be called test-crossing.
<h3>Test-crossing</h3>
In genetics, test crossing is a procedure through which the zygosity of an individual can be determined - whether it is homzygous or heterozygous.
Test crossing requires that an organism who displays a dominant trait but whose zygosity is unknown is crossed with another organism of the same species but who displays the recessive version of the same trait.
By so doing and using the knowledge of probability, the resulting offspring from the cross will be used to determine the zygosity level of the parent.
More on test crossing can be found here: brainly.com/question/16805498
