The main, or central, idea of the passage is Chimpanzees and humans have surprisingly similar DNA. How does the detail in bold develop the main idea?Humans and chimpanzees descended from a common ancestor, a gorilla-like creature that lived millions of years ago. Even in light of this fact, it is astonishing to learn just how similar humans and chimpanzees are when it comes to their genes. In fact, the two species' DNA differs by only 1.2 percent. A laboratory comparison of chimp and human chromosomes—strands of DNA each containing approximately 1,100 genes—reveals a strikingly similar pattern. Perhaps surprisingly, chimpanzees are genetically closer to humans than to gorillas. Admittedly, the apparently small 1.2 percent variation between chimps and humans still corresponds to forty million differences in DNA base pairs. Still, the tremendous genetic similarity indicates that the chimpanzee (along with the bonobo, another ape) is our closest living relative.It suggests the initial reason why scientists pursued research on DNA similarity.It offers an alternative interpretation of DNA research.It specifies the extent of the genetic similarity.Submit
Question
The main, or central, idea of the passage is Chimpanzees and humans have surprisingly similar DNA. How does the detail in bold develop the main idea?Humans and chimpanzees descended from a common ancestor, a gorilla-like creature that lived millions of years ago. Even in light of this fact, it is astonishing to learn just how similar humans and chimpanzees are when it comes to their genes. In fact, the two species' DNA differs by only 1.2 percent. A laboratory comparison of chimp and human chromosomes—strands of DNA each containing approximately 1,100 genes—reveals a strikingly similar pattern. Perhaps surprisingly, chimpanzees are genetically closer to humans than to gorillas. Admittedly, the apparently small 1.2 percent variation between chimps and humans still corresponds to forty million differences in DNA base pairs. Still, the tremendous genetic similarity indicates that the chimpanzee (along with the bonobo, another ape) is our closest living relative.It suggests the initial reason why scientists pursued research on DNA similarity.It offers an alternative interpretation of DNA research.It specifies the extent of the genetic similarity.Submit
Solution
The detail in bold, which states that "the two species' DNA differs by only 1.2 percent," develops the main idea by specifying the extent of the genetic similarity between humans and chimpanzees. This detail provides concrete evidence to support the main idea, making it more convincing and understandable. It quantifies the similarity, showing just how close the genetic relationship between the two species is. This helps to reinforce the main idea and make it more impactful.
Similar Questions
Homo Sapiens and chimpanzees share 98.8% of their DNA and are believed to have had a common ancestor 6 to 8 million years ago. Which of the following statements is true? achimpanzee brains are larger than modern human brains bthe modern human's mouth is smaller than a chimp's cthe modern human's teeth are smaller than a chimp's dthe chimp's palate is round while a modern human's in oval shape e"A" and "C" f"B" and "C" g"A" and "D" h"B" and "D" i"A" and "D" j"A", "B", "C", and "D"
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