I would say that the answer is D.
Answer:
Natural selection can cause microevolution (change in allele frequencies).
Explanation:
With fitness-increasing alleles becoming more common in the population.
Global warming. Not reversing it, because that would most likely cause an ice age, but keeping it under control.
Answer:
Produce multiple polypeptide sequences from a single primary transcript.
Explanation:
Some genes produce more than one type of protein since the primary transcript encoded by these genes undergoes alternative splicing. These genes mostly have one segment that can serve either as intron or exon. Also called differential splicing, alternative splicing removes the segment as intron but retains it as an exon.
Splicing of the single primary transcript in different ways produces more than one version of mRNA from a single primary transcript encoded by a single gene. The alternative splicing allows the cells to produce multiple types of troponin proteins from single genes. These different troponin regulation muscle contraction in different muscles
First calculate all the number the multiply by 3 the you get your answer of $186
