HELP ME QUICKKK The DNA sequences below show DNA segments for four different species.

Scientists sometimes use DNA sequences such as these to determine the relatedness of different species. Which of the following is a necessary condition for scientists to use DNA sequences in this way?

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

How will technology impact medicine in the future?

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere