A biologist analyzes the DNA sequences of one gene in three different primates . The biologist finds that primates A and B have
almost exactly the same DNA sequences for that gene. The DNA sequences in primate C are significantly different from those of A and B. This information allows the biologist to infer that:________
The question is incomplete as it does not have the option which are:
primates A and B are more closely related to each other than either is to primate C.
all three primates appeared on Earth at about the same time.
either primate A or primate B must be a direct ancestor of primate C.
primate C must have been the ancestor of both primate A and primate B.
Answer:
Primates A and B are more closely related to each other than either is to primate C.
Explanation:
In the given question, on the basis of the given information, it can be predicted that the Primate A and B are more closely related to C as the DNA sequences of these two primates are almost similar. The similarity of the sequence suggests that these primates have descended or diverged from a common ancestor.
The DNA sequence of C is different from both A and B which shows that both A and B are different from the C.
The DNA sequencing is important for the determination of the evolutionary relationship with the organisms. The ancestory and descendants can also be identified by DNA sequencing.
Three primates A,B and C DNA sequences has been identified. It is given that primates A and B has same sequence and they are more closely related with each other. The primates C is unique and do not share relation with the primates A and B.
The complex eukaryotic cell ushered in a whole new era for life on Earth, because these cells evolved into multicellular organisms. Evidence supports the idea that eukaryotic cells are actually the descendents of separate prokaryotic cells that joined together in a symbiotic union.
Yes, crossing over does not occur during mitosis. As mitosis is simply the duplication of cells, there is no gene variation that comes from crossing-over.
