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Questions and Answers

What significant discovery did Lap-Chee Tsui contribute to medical genetics?

  • Chirped pulse amplification technique
  • The impact of CFCs on the ozone layer
  • The fault in the gene responsible for cystic fibrosis (correct)
  • The role of synapses in learning

Which scientist is known for predicting a field that accounts for the mass of elementary particles?

  • Peter Higgs (correct)
  • Mario J. Molina
  • Eric Kandel
  • Donna Strickland

Which contribution is associated with Donna Strickland's work in physics?

  • Development of chirped pulse amplification (correct)
  • Discovery of telomeres
  • Studies of memory and learning in sea slugs
  • Research on CFCs

What was a significant effect of Mario J. Molina's research on CFCs?

<p>Banning of chlorofluorocarbons (C)</p> Signup and view all the answers

Which Nobel Prize did Carol Greider share in 2009?

<p>Nobel Prize in Physiology or Medicine (A)</p> Signup and view all the answers

What aspect of brain function did Eric Kandel specifically investigate?

<p>The role of synapses in memory and learning (C)</p> Signup and view all the answers

Which of the following facts about Mae Carol Jemison is accurate?

<p>Served as a medical officer in the Peace Corps (A)</p> Signup and view all the answers

What is a key concept of Peter Higgs's theory?

<p>The existence of the Higgs boson (C)</p> Signup and view all the answers

What was the primary scientific contribution of Abdus Salam?

<p>Proposing the electroweak theory (D)</p> Signup and view all the answers

Which concept did Fred Hoyle promote that was largely discredited in the 1960s?

<p>The steady state theory of the universe (C)</p> Signup and view all the answers

What role did Katherine Johnson have in the NASA space program?

<p>Calculating trajectories for space missions (C)</p> Signup and view all the answers

What major discovery did Vera Rubin make regarding galaxies?

<p>Stars orbiting in the outer part of spiral galaxies travel as fast as those near the center (C)</p> Signup and view all the answers

Which genetic condition was investigated by Irene Uchida for its chromosomal differences?

<p>Congenital heart disease (D)</p> Signup and view all the answers

What is the significance of the term 'Big Bang' in the context of Fred Hoyle's work?

<p>He coined the term but used it disparagingly against the opposing theory (D)</p> Signup and view all the answers

During which years did Yvonne Brill work on rocket engines for the space shuttle?

<p>1981 to 1983 (D)</p> Signup and view all the answers

What was one of the key areas of research for Irene Uchida?

<p>Effects of X-rays on chromosomes (B)</p> Signup and view all the answers

Which scientific principle did Vera Rubin's discovery challenge?

<p>Newton's laws of gravity (D)</p> Signup and view all the answers

Flashcards

Fred Hoyle's Steady State Theory

The universe's average density remains constant as new matter is continuously created, even as the universe expands.

Electroweak Theory

Explains how weak forces and electromagnetic forces are unified.

Dark Matter

Invisible matter that affects the orbital speed of stars in galaxies.

Irene Uchida's Research

Studied the impact of genes/chromosomes on health (Down syndrome, congenital heart issues); impact of X-rays on chromosomes.

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Katherine Johnson's Role

NACA/NASA mathematician who calculated trajectories for space missions, e.g., Alan Shepard, Apollo 11.

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Yvonne Brill's Invention

Developed a propulsion system for keeping spacecraft in stationary orbit.

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Abdus Salam's Contribution

Developed the electroweak theory, explaining the weak interaction between particles, and its unification with electromagnetism

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Vera Rubin's Discovery

Discovered stars in outer galaxies orbit as fast as those nearer to the center, challenging Newtonian gravity.

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Origin of Elements (Hoyle)

Proposed that chemical elements are formed through step-by-step nuclear reactions inside stars.

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Down Syndrome

Genetic disorder related to an extra chromosome (47 instead of 46).

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Higgs boson

A subatomic particle predicted by Peter Higgs' theory associated with the Higgs field.

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CFCs

Chlorofluorocarbons, gases which deplete the ozone layer.

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Cystic fibrosis

A genetic disease caused by a faulty gene, discovered by Lap-Chee Tsui.

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First African American woman in space

Mae Jemison, who traveled on the Space Shuttle Endeavour in 1992.

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Chirped pulse amplification

A technique that creates intense lasers, developed by Donna Strickland and Gerard Mourou.

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Telomeres

Protective DNA caps at chromosome ends, vital for cell lifespan.

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Nobel Prize in Physiology or Medicine (2009)

Awarded for research on telomeres and telomerase (shared by Carol Greider, Elizabeth Blackburn and Jack Szostak).

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Role of synapses in memory and learning

Eric Kandel's Nobel-winning research focused on synapses and their role in memory formation using sea slugs.

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