Stem Cells Research: Gene Control video

1. Why did the German scientist decide to study the fruit flies at the larval stage?
2.How does the mother fly activate the control genes?
3. What is the role of control genes?
4.Which of the two species is closer to humans?

1.They did this in order to watch how they developed, although it was harder to study them because they were crawling on the food all the time. All sow, to observe which chemical message the mother left on the eggs.

2. The mother leaves on the eggs different chemical messages, that indicates which part of the egg will become the head and which will become the tail.

3. The "control gene's" role is to tell the cells of the body which organs and structures they should become, and when.

4. Actually, how the control gene works in both species is the same as in the human been. But the zebra fish's body plans are similar to humans.