"Lonesome George's Genome Offers Clues to Long Life"

by Vicky Stein

Lonesome George, a wizened Galapagos giant tortoise, was the last of his kind. When a researcher spotted the nearly five-foot-long reptile roaming Pinta Island in 1971, his species had been thought extinct for decades. During the 40 years that followed — until his death in 2012 — Lonesome George was believed to be the only Pinta giant tortoise on the planet.

Now, researchers are using the iconic tortoise’s genetic material along with DNA from another long-lived turtle, the Aldabra giant tortoise, to better understand what it takes to live a long life.

1 of 2
Question
Use the article excerpt to answer the question.

How does paragraph 4 develop the claim made in the article title?

(1 point)
Responses

The paragraph develops the idea that researchers are interested in what it takes to live a long life.
The paragraph develops the idea that researchers are interested in what it takes to live a long life.

The paragraph expands on the idea that Lonesome George had a special kind of DNA.
The paragraph expands on the idea that Lonesome George had a special kind of DNA.

The paragraph explains why humans and tortoises have similar lifespans.
The paragraph explains why humans and tortoises have similar lifespans.

The section explains why turtles do not get cancer or experience inflammation.

9 answers

The correct response is:

The paragraph develops the idea that researchers are interested in what it takes to live a long life.

"Lonesome George's Genome Offers Clues to Long Life"
by Vicky Stein

Lonesome George, a wizened Galapagos giant tortoise, was the last of his kind. When a researcher spotted the nearly five-foot-long reptile roaming Pinta Island in 1971, his species had been thought extinct for decades. During the 40 years that followed — until his death in 2012 — Lonesome George was believed to be the only Pinta giant tortoise on the planet.

Now, researchers are using the iconic tortoise’s genetic material along with DNA from another long-lived turtle, the Aldabra giant tortoise, to better understand what it takes to live a long life.

In a new study published Monday in Nature Ecology and Evolution, the researchers sequenced Lonesome George and his fellow giant tortoises’ genes to compare the common genetic links among other long-living animals — such as naked mole rats, bats, some species of whales and humans.

1 of 7
Question
Use the article to answer the question.

Which sentence from later in the text best helps develop the idea expressed in paragraph 2?

(1 point)
Responses

Lonesome George was a conservation icon, Caccone said, but a conservation icon that can also provide insights into human health and aging.
Lonesome George was a conservation icon, Caccone said, but a conservation icon that can also provide insights into human health and aging.

Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George’s long, disease-free life.
Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George’s long, disease-free life.

By targeting more than 3,000 genes of interest, the researchers could tease out the variations between humans and tortoises.
By targeting more than 3,000 genes of interest, the researchers could tease out the variations between humans and tortoises.

Their long, slow existence “has been key to their survival — from a time of overexploitation to a time of greater enlightenment and conservation,” she wrote in an email.

The sentence that best helps develop the idea expressed in paragraph 2 is:

"Thanks to this analysis, the researchers were able to narrow down their original list of 3,000 genes to 43 specific sequences that might have contributed to Lonesome George’s long, disease-free life."

Select the correct answers from the lists.(1 point)

is an assertion that something is true. A
is a statement that explains or justifies a point of view.

An assertion is an assertion that something is true. A claim is a statement that explains or justifies a point of view.

Which word describes the facts and information that support an idea or analysis?(1 point)
Responses

statement
statement

evidence
evidence

claim
claim

reasons

The word that describes the facts and information that support an idea or analysis is evidence.

What information does an introduction provide for readers?(1 point)
Responses

An introduction presents counterclaims to the author’s argument.
An introduction presents counterclaims to the author’s argument.

An introduction helps readers identify the claim or central idea.
An introduction helps readers identify the claim or central idea.

An introduction summarizes the evidence presented in the article and proposes solutions.
An introduction summarizes the evidence presented in the article and proposes solutions.

An introduction provides evidence that supports the claim or central idea.

The correct response is:

An introduction helps readers identify the claim or central idea.

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