What do homeobox genes code for in animals?
Some genes
are “more important” than other because they generate the basic body parts in a
living being, this are the homebox genes.
Why are homeobox (also called homeotic) genes called the master control genes, or master switches?
These genes
are called the master genes because they are common to almost every living thing.
These genes are supposed to be the genes of our common ancestor.
What other organisms besides fruit flies have homeobox genes?
Almost all
animals, because we have a very similar genetic structure.
What did the experiment with fruit flies and mice show?
This
experiment showed that the homebox gens are common to some animals and that by
changing them from one animal to the other it created no problematic effect.
What does the presence of packages of information suggest about evolution?
It suggests
that all animals came from a common ancestor but different adaptations occurred
to create the different animals we now have.
How has evolution tinkered with genes of animals?
As there were
different combinations of these genes, different animals were created
What role has embryos played in the study of evolution?
At this
stage, scientists can see easily any change in the growing process of the
animal, so it is very useful to study in this stage.
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