Once an RNA has been produced, by transcription and processing the information present in its nucleotide sequence is used to synthesize a protein.
The correct answer is: b) directional selection
Directional selection is a type of natural selection in which an extreme phenotype is favored over other phenotypes. In this case, phenotype of large crickets will be favored, because they cannot be eaten by lizards. Large crickets are advantageous in surviving and reproduction. This will cause the allele frequency to shift over time in the direction of that large size phenotype.
B. The brain reacts to excessive dopamine levels by increasing the number of dopamine receptors.
Answer:
Aspiring clinical geneticists must complete a bachelor's degree program, and earn a Doctor of Medicine or Doctor of Osteopathic Medicine at a medical school. After earning a doctoral degree, geneticists participate in a medical residency in genetics to gain specialized training.