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Is it true that the degree of dissimilarity in DNA sequences is an indication of how long ago two species shared a common ancestor?
Wiki User
∙ 10y ago
There is a direct proportional relationship between common ancestry and degree of DNA similarities. The common ancestry will determine the degree of the similarities in the DNA.
Wiki User
∙ 9y ago
Wiki User
∙ 10y agoTrue
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What can embryos tell us about evolution?
Actually yes it can. Embryos, DNA sequences, and fossils amongst others things can help show similarities within species. This can show that those species have similar traits because they evolved from a common ancestor. But those differences show why they are different species and thus evolving.
What can an embryo tell us about evolution?
Actually yes it can. Embryos, DNA sequences, and fossils amongst others things can help show similarities within species. This can show that those species have similar traits because they evolved from a common ancestor. But those differences show why they are different species and thus evolving.
The occurrence of the same blood protein in a group of species provides evidence that these species?
descended from a common ancestor
What does a branch point in a cladogram represent?
The branch point in a cladogram represents a specific ancestor that is separated into two or more species. For example a leopard and a house cat share a common ancestor. A similar example is that a wolf shares a common ancestor with the leopard's and house cat's ancestor but the wolf's ancestor lived longer than the leopard's and house cat's ancestor. Scientists use something called cladistics to determine the one common ancestor that multiple species have in common.
What does similar structures in embryos mean?
the species come from a common ancestor
Which term refers to a similar structures that related species have inherited from a common ancestor?
DNA sequences
What type of study is most appropriate for determining the time at which a common ancestor to humans and chimpanzees lived?
comparing DNA sequences between humans and chimpanzees Also,The more similar the DNA of two species, the more recently they diverged from a common ancestor
What does it mean when two species share a common ancestor?
An ancestor.
What is homeobox gene?
A homeobox gene controls the development of a specific structure in an organism. These gene sequences are found in many species (from flies to humans) and can indicate a very distant common ancestor, since one ancient species might have passed on one homebox gene to two separates species.
What can embryos tell us about evolution?
Actually yes it can. Embryos, DNA sequences, and fossils amongst others things can help show similarities within species. This can show that those species have similar traits because they evolved from a common ancestor. But those differences show why they are different species and thus evolving.
What is home-box gene?
A homeobox gene controls the development of a specific structure in an organism. These gene sequences are found in many species (from flies to humans) and can indicate a very distant common ancestor, since one ancient species might have passed on one homebox gene to two separates species.
What can an embryo tell us about evolution?
Actually yes it can. Embryos, DNA sequences, and fossils amongst others things can help show similarities within species. This can show that those species have similar traits because they evolved from a common ancestor. But those differences show why they are different species and thus evolving.
What technique do biologists use to estimate how long ago species separated from a common ancestor?
The best way to estimate the time of divergence of species from a common ancestor is by genetic analysis; aside from the functional evolutionary changes in genetics, there are also accumulated random genetic changes called genetic drift, which are a good indication of the amount of time that has passed.
Similar structures that related species have inherited from common ancestor.?
what is Similar structures that related species have inherited from a common ancestor
A species from which two or more species diverged?
Common ancestor
When comparing cytochrome sequences among species what species is identical to humans?
Chimpanzee
When the internal strucure of two species are very similar what can be inferred about both species?
They evolved from a common ancestor.
