A certain segment of DNA can be used as a molecular clock. Its rate of mutation is one mutation per 15 million years. Examine th
e DNA segments from two different species: Species A: GTTGAGCTAGTATGGACC Species B: GATAAGCTAGTAAGGTCA Using this example, explain how this information can be used to determine how long ago these two species shared a common ancestor. Be sure to answer this question in paragraph form using complete sentences.
This can be done by<u> DNA sequencing which is the process of determining the accurate order of nucleotides within a DNA molecule</u>.
By doing a DNA sequencing for the two sequences of DNA from the two species it will help compare the number of random mutations which have occurred in a molecular clock in the two species - that is, seeing how different the sequences are.
This will make it possible to infer how long ago the species diverged.
Species A: GTTGAGCTAGTATGGACC
Species B: GATAAGCTAGTAAGGTCA
These species differ in 5 nucleotides.
This number should be multiplied by the rate of mutations; that is;
Wallace is often referred to as the father of modern biogeography. 6. The finger bones inside manatee and whale flippers are evidence that these living species are modified forms of older species.
In G2 phase (third phase of interphase) of cell division, following the S phase. It is during the S phase of the cell division during which the DNA of the cell replicates. Hence, in the G2 has double the DNA range as compared to the DNA range in prior stages of interphase. Also, in G2 phase cell grows and protein synthesize
It comes from ancient Greek and basically means to touch in a certain direction. They don't, however, only react to touch; they react to things like wind too in order to latch and not be separated when there's wind blowing on them. </span>
