How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?(1 point)

Responses

By running experiments on astronauts that were in space for over a year.
By running experiments on astronauts that were in space for over a year.

By introducing animals and other organisms that could be studied in space.
By introducing animals and other organisms that could be studied in space.

By observing changes in retired astronauts over a period of ten years.
By observing changes in retired astronauts over a period of ten years.

By analyzing changes in one twin on Earth and the other in space.

1 answer

NASA helped to distinguish genetic factors from environmental ones when studying the effects of living space by analyzing changes in one twin on Earth and the other in space. This approach allowed researchers to compare the effects of the space environment on an individual at the genetic level while controlling for genetic similarities.