Unraveling DNA with Rational Tangles

Unraveling DNA with Rational Tangles

Assessment

Interactive Video

Mathematics, Science

11th Grade - University

Hard

Created by

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The video introduces rational tangles, a mathematical concept first defined by John Conway, and explores their application in understanding DNA. It explains how rational tangles are formed using horizontal and vertical twists, which correspond to rational numbers through continued fractions. The video also discusses the equivalence of rational tangles and their unique properties. Additionally, it highlights the role of rational tangles in biology, particularly in DNA replication and cell division, and touches on current research and applications in various fields.

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10 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is a rational tangle and who first defined it?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the two types of twists that can be performed on strings in a rational tangle.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the continued fraction relate to the number of twists in a rational tangle?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the relationship between rational tangles and rational numbers?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the significance of the rational tangle theorem.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the implications of knots in DNA during cell division?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the role of enzymes in the process of untying knots in DNA.

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