The 2017 Nobel Prizes: Biological Clocks and Microscopy

The video discusses the recent Nobel Prizes, highlighting the Physics award for gravitational waves, the Physiology award for research on biological clocks by Hall, Rosbash, and Young, and the Chemistry award for cryoelectron microscopy by Dubochet, Frank, and Henderson. The Physiology section explains the discovery of genes regulating circadian rhythms, while the Chemistry section details advancements in imaging organic molecules. The video concludes by acknowledging the laureates' contributions to science.

Who were the Nobel Prize winners in Physiology or Medicine recognized for their work on biological clocks?

• Isaac Newton, Galileo Galilei, and Johannes Kepler

• Charles Darwin, Gregor Mendel, and Louis Pasteur

• Jeffrey Hall, Michael Rosbash, and Michael W. Young

• Albert Einstein, Niels Bohr, and Marie Curie

What is the role of the PER protein in the biological clock mechanism?

• It accelerates the production of hormones.

• It builds up at night and breaks down during the day.

• It helps in the digestion of food.

• It regulates the heartbeat.

Which gene produces a protein that binds with PER to enter the cell nucleus?

• Cycle

• Clock

• Double Time

• Timeless

What is the main advantage of cryoelectron microscopy in studying organic molecules?

• It can only image dead cells.

• It requires no vacuum environment.

• It allows imaging without destroying the sample.

• It uses light to image molecules.

How did Dubochet contribute to the development of cryoelectron microscopy?

• He invented the electron microscope.

• He developed a method to freeze samples rapidly.

• He created a new type of electron beam.

• He discovered a new protein structure.