A.
This is the central dogma of Biology that I was forced to memorize.
"DNA is transcribed into RNA which is then translated into proteins"
I would say either 2 or 4, but 4 is more likely. New mutations can cause the finch to be able to eat larger seeds, or it can cause it to not be able to eat large things. The environment can also be a big factor. Finches living in the trees are closer to the seeds and the finches living in the logs are closer to the insects.
Hope this is clear enough.
two
A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits.
C. The recessive allele was hidden by the dominant allele.
