Genes that are expressed all the time are dominant ones. They can also be seen all the time if it is a genotype(ie. eye color, hair color, etc.)
Answer:
should only be 2
Explanation:
when you do a punnet square F only transfers o 2 of the plants, while f transfers to 4. Since F is dominante 2 will be fast growing plants.
So sorry if it's wrong.
Answer:
[The recent activities of fossil fuel combustion has had adverse effects on the ozone layer]- B.