Complete Table 2 to show three differences between DNA in the nucleus of a plant cell and DNA in a prokaryotic cell.

1

2

3

Scientists investigated the genetic diversity between several species of sweet potato. They studied non-coding multiple repeats of base sequences.

Define 'non-coding base sequences' and describe where the non-coding multiple repeats are positioned in the genome.

The percentage similarities in the non-coding multiple repeats of base sequences of four species of sweet potato are shown in Table 3.

Use the information in Table 3 to complete the phylogenetic tree shown in Figure 8.

Write the letter that represents the correct species into each box.

The scientists studied five individuals from each species. Within the five individuals of species T they found a percentage similarity of 66%.

Use Table 3 to evaluate how this information affects the validity of the phylogenetic tree.