It is a matter of time. Crystallization processes can occur more easily when the rock is kept at a certain temperature during a long time. Because of that, well-formed and well crystallized minerals will appear in intrusive igneous rocks (such as granitoids). On the opposite, when a rock spreads rapidly over the Earth's surface, the temperature decreases rapidly, keeping the minerals from forming. A homogeneous paste will form, without any (or few) minerals in it. It is the case for volcanics rock
Answer: 50%
Explanation:
Half of the offspring have the FF allele meaning that they don't carry the gene
The other half has the Ff allele. Since it has the lowercase f, it means that it carries the cystic fibrosis gene
Hope this helps!
the genetic constitution of an individual organism.