Which of these statements about the human genome is true? (a) About 50, of nucleotides are identical in all humans. (b) Humans have about 100,000 genes. (c) About 90, of the human genome carries...

Which of these statements about the human genome is true?

(a) About 50, of nucleotides are identical in all humans.

(b) Humans have about 100,000 genes.

(c) About 90, of the human genome carries instructions for making proteins.

(d) SNPs identify locations in the human genome where the nucleotide sequence differs among individuals.