You have isolated DNA from three different cell types of an organism, determined the relative DNA content for each type, and plotted the results on the graph shown in Figure 10.3. Refer to the graph to answer the following questions.
Figure 10.3
-Which sample(s) might represent a zygote?

Question

You have isolated DNA from three different cell types of an organism, determined the relative DNA content for each type, and plotted the results on the graph shown in Figure 10.3. Refer to the graph to answer the following questions.
  Figure 10.3
-Which sample(s) might represent a zygote?

Quizplus · Accepted Answer

A zygote is formed by the fusion of two haploid cells (usually a sperm and an egg) so its DNA content would be the sum of the DNA content of those two cells. Sample I on the graph shows a DNA content that is much higher than either of the other two samples, indicating that it likely contains the combined DNA of two haploid cells.

You Have Isolated DNA from Three Different Cell Types of an Organism