Which one of the following is a characteristic of a metal?
a. changes the color of litmus paper to red
b. conducts heat readily
c. reacts with bases to produce salts
d. becomes negative when combined with other elements

Place the steps tor the formation of the enzyme pepsinogen in correct order

The first amino acid of a new polypeptide chain is

In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.