A) Loci
B) Alleles
C) Barcodes
D) Exons

A) It is a section of DNA sequence that can be used to characterize variation in nucleotide bases.
B) It is a barcode added to DNA.
C) It is a copied sequence of a person's genome that is then a target for DNA barcoding.
D) All of the above.

A) Chemicals that plants produce when attacked, that are toxic or poisonous, and have high specificity.
B) Chemicals that plants always produce, reduce digestion when consumed, and accumulate ill effects.
C) Chemicals that plants produce when attacked, that reduce digestion when consumed, and have high specificity.
D) Chemicals that plants always produce, that are toxic or poisonous, and have high specificity.