Genetic Studies and Space Physiology

The video discusses a twin study involving two astronauts, one on Earth and one in space, to understand the genetic and physiological effects of space travel. Samples like saliva, urine, and stool are collected and analyzed. The study includes MRIs and ultrasounds to examine changes in the body, particularly the eyes and fluid behavior. The research aims to provide insights into the long-term effects of spaceflight on human health.

What makes the twin study a perfect genetic experiment?

• The twins have different genomes.

• The twins have identical genomes and careers.

• The twins live in different countries.

• The twins have different careers.

What is the primary goal of analyzing the samples from the space station?

• To find out which twin is taller.

• To determine the best exercise routine for astronauts.

• To understand the fundamental effects of spaceflight on astronauts.

• To compare the twins' favorite foods.

What kind of tests are conducted to examine physiological changes?

• Vision tests only.

• Hearing tests only.

• MRIs and ultrasounds.

• Blood pressure tests only.

How does fluid behavior change in space?

• It remains the same as on Earth.

• It evaporates quickly.

• It behaves differently, but the exact change is unknown.

• It becomes solid.

What is the significance of the genetic information collected from the twins?

• It is the same as what is known about other people.

• It is less than what is known about other people.

• It is irrelevant to the study.

• It is more than what is known about any other people.