I believe that the answer to your question would be A. Heart Begins.
Answer:
18% T (Thymine). pls brainliesttt
<span>B. Chromosomal disease results from an uncontrollable growth of abnormal cells.</span>
Answer:
Explanation:In a heterozygote, the allele which masks the other is referred to as dominant, while the allele that is masked is referred to as recessive.
The answer would be D. Because the mitochondria has the energy ATP and is synthesized during cellular respiration.