Hunt for the Oldest DNA Video

What is considered a new window to the past, according to the video?

• Historical documents

• Ancient DNA

• Fossils

• Geological formations

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What is the main challenge mentioned in preserving ancient DNA? (a)  

• It requires special equipment
• It falls apart outside the body
• It can only be found in fossils
• It is too abundant to analyze

What era's creatures are being revealed due to a breakthrough in DNA research?

• Jurassic

• Cretaceous

• Before the last Ice Age

• Mesozoic

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The main goal of studying ancient genes from a lost world is (a)   .

• To recreate extinct species
• To understand historical climate ch
• To adapt to a changing planet
• To improve modern DNA research tech

What was a significant challenge in the early days of ancient DNA research?

• Insufficient funding

• Lack of technology

• Lack of interest

• Contamination with modern DNA

Why is the Kap Kobenhavn Formation significant for ancient DNA research?

• It is a perfect preservation site due to its cold, dry conditions

• It contains well-preserved dinosaur bones

• It is the only place where DNA can be extracted from soil

• It is the site of the oldest human fossils

What was the previous record for the oldest DNA recovered before the breakthrough mentioned in the text?

• From a 400,000-year-old ice core

• From a 500,000-year-old human

• From a 1 million-year-old mammoth

• From a 2 million-year-old plant

(a)   allowed researchers to work with very short DNA fragments.

• Electrophoresis
• PCR amplification
• Shotgun sequencing
• Barcoding

What was the estimated age of the DNA samples from the Kap Kobenhavn Formation?

• 3 million years old

• 500,000 years old

• 1 million years old

• At least 2 million years old

What was a major outcome of the ancient DNA research mentioned in the text?

• Proof of human-dinosaur coexistence

• Cloning of an extinct animal

• Reconstruction of a Pliocene ecosystem

• Discovery of a new species

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