A the concentration gradient!
I think A is the answer it makes the most sense to me
Answer:
2
:2
Explanation:
<em>The genotypic ratio of expected of their offspring would be 2</em>
<em>:2</em>
<em>.</em>
From the illustration, the genotype of the man with male pattern baldness is
while the genotype of the woman without the baldness allele is
.
Crossing the two genotypes in marriage:
x 
Progeny:

<em>Hence, the genotypic ratio of the offspring becomes:</em>
2
:2
Tectonic plates, is probably the answer
<span>Ribosomes are the protein builders or the protein synthesizers of the cell. They are like construction guys who connect one amino acid at a time and build long chains. Ribosomes are special because they are found in both prokaryotes and eukaryotes.</span>