Answer:
<h2>an organism in which both copies of a given gene have the same allel is homozygous. </h2>
The answer tot his question is:
<span>Fill in the blank.
</span>A scientific ___________ is a proposed explanation that can be tested."<span>Scientific Theory."
Hoped This helped, </span><span>
Jaylamariejohsov5zsb
Your Welcome:) </span>
It is called a gene, so the answer is b. gene
