Biology, 06.10.2019 14:00, awsomeboy12345678
Agroup of scientists determines that a mitochondrial dna sequence shared by two species has a constant mutation rate. the sequences of mitochondrial dna for the two species are shown below.
species a: gactgggcatta
species b: gaccggacatga
using the principles of molecular clocks and a known mutation rate for this sequence, the scientists determine that these species diverged from a common ancestor 30 million years ago. based on this information, how much longer do you predict it would take these species to differ by a total of seven base pairs?
60 million years
20 million years
140 million years
40 million years
Answers: 2
Biology, 22.06.2019 01:30, alaina3792
Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina
Answers: 2
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