Human brain cells implanted into mice

The video discusses a study published in Nature Biotechnology, where scientists from the Salk Institute transferred human brain cells into mice pups. The cells, taken from human fetuses, were made fluorescent green and inserted into the mice's brains. Researchers used plastic windows on the mice's skulls to observe the development of these cells over several months. The study found that in some areas, human brain cells outnumbered the mice's own cells.

Which journal published the study on transferring human brain cells into mice?

• Science

• Nature Biotechnology

• Cell

• The Lancet

What was done to the human brain cells before they were implanted into mice?

• They were enlarged

• They were dyed blue

• They were turned fluorescent green

• They were frozen

How did researchers track the development of human brain cells in mice?

• By placing small plastic windows over the animals' skulls

• By observing behavioral changes

• By using X-ray imaging

• By using MRI scans

Over what period was the development of human brain cells in mice observed?

• A few days

• Several weeks

• Several months

• A year

In some areas, how did the number of human brain cells compare to mice brain cells?

• They were fewer

• They were equal

• They were not present

• They outnumbered the mice brain cells