Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. it is known that this segment of mtdna changes at a steady rate of one base pair every 4 million years. compare the sequences of the two mtdna segments given below. species a: gcactaagcatcgattt species b: gcaccaggcactggttc use the basic principle of molecular clocks to calculate how long ago the two species diverged from a common ancestor. 12 million years ago 8 million years ago 48 million years ago 24 million years ago
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Biology, 22.06.2019 13:00, shanicet047ox9ff6
This rapid change in species that rarely leaves behind fossil evidence is referred to as
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Biology, 22.06.2019 18:00, baileypreston311
The diagram below shows the layers of a rock having a trilobite: a rock column labeled rock is shown. the column has three layers. the bottommost layer of the rock has one shaded rhomboid shape, the middle layer has a rhombus with a diagonal along with two identical organisms marked as, trilobite, in the key, the top layer has two semicircles. a key is shown on the right side of the diagram. the shaded rhombus is marked as a, the rhombus with the diagonal is marked as b, the semicircle is marked as c which statement about the rock fossils is true?
Answers: 2
Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. i...
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