Answer:
C
Explanation:
Directional selection is one that favors one extreme ends of a trait of a population. In this case the length of the neck in the giraffe population is the trait and the longest necks have an advantage –they gather more food hence have more chances of reaching reproductive age and passing their genes to next generation- and are, therefore, favored best by natural selection pressures that power evolution.
The structures and molecules involved in translation includes; the messenger RNA, which is a result of transcription, small subunit of ribosome, large subunit of ribosome, Amino acids, the Transfer RNA and also the anticodon. Translation is the process by which the information in the messenger RNA is interpreted to make proteins in the cytoplasm in the organelles called ribosomes.