I think its true because oxygen makes up about one-fifth of the Earth's atmosphere. Nearly 90 percent of the weight of the oceans is due to oxygen. In addition, oxygen is thought to be the third most abundant element in the universe and in the solar system
Answer:
A. The phenotypes that result from having 2 or 4 dark-skin alleles
Explanation:
C option is the right answer which states teat the first has one more amino acid than the second.
Explanation:
The first mRNA sequence codes for the Methionine (start codon), isoleucine, valine, and tyrosine.
The second mRNA sequence for the Methionine, isoleucine, valine only, because the last sequence (UAG) is of stop codon and stop codon do not code for any of the amino acids.