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Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.

What causes darkening of the skin as melanin production increases

What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?