The answer is D
It combines DNA fragments from more than one source
Answer:
The lymphatic system carries out the body's immune responses by producing and distributing cells, such as lymphocytes and macrophages, that combat disease. Lymph vessels, or lymphatics, drain fluid from all parts of the body and return it to the heart.
Explanation:
Answer: Sequence of Amino acids
Explanation: The shape of a protein is determined by its primary structure (sequence of amino acids). The sequence of amino acids in a protein is determined by the sequence of nucleotides in the gene (DNA) encoding it.
The nucleus. If a cell has a nucleus it is eukaryotic if it doesn't, it is prokaryotic.
