Meet the Scientist Who Studies Natural Selection

What organism does Dr. Dave Yuan study to understand natural selection?

• Bacteria

• Yeast

• Plants

• Animals

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Why are yeast organisms good for studying natural selection?

• They are large and easy to see

• They reproduce very quickly

• They are very complex organisms

• They do not change over generations

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How many unique lineages of yeast are there according to Dr. Yuan?

• About a thousand

• About a million

• About half a million

• About ten thousand

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What is one method Dr. Yuan uses to study natural selection in yeast?

• Using a special tool to bar code different lineages

• Observing yeast in their natural habitat

• Feeding yeast different types of food

• Exposing yeast to different temperatures

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What is the main focus of Dr. Yuan's experiments with yeast?

• To see how yeast can be used in baking

• To understand how traits are passed down over generations

• To find new types of yeast

• To study the effects of different environments on yeast

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Why did Yuan decide to try out scientific research as a job?

• He wanted to become famous.

• He wanted to see if he liked it.

• He was forced by his parents.

• He had no other career options.

What does Yuan find exciting about studying natural selection?

• The high salary.

• The opportunity to travel.

• Learning things nobody has known before.

• The easy work hours.

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What does Yuan say about the challenges in scientific research?

• Everything always goes as planned.

• They never encounter problems.

• They often run into unexpected problems.

• They do not need to troubleshoot.

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What advice does Yuan wish he could give his younger self?

• Focus more on sports.

• Learn as much math as possible.

• Avoid studying science.

• Travel more often.

What does Yuan say about the use of computer coding in scientific research?

• It is not useful at all.

• It is a very useful tool.

• It is only for computer scientists.

• It is rarely used.

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