Enzymes are catalysts because... (SB1.c) I. They slow down the rate of chemical reactions II. They speed up the rate of chemical reactions III. They lower the activation energy of a chemical reaction

Which statement about dna replication is true? a. eukaryotes only have one circular chromosome that unwinds at multiple locations. b. eukaryotes can only replicate one segment of a chromosome at a time. c. prokaryotes can only replicate their single circular chromosome in the nucleus. d. prokaryotes only have one origin of replication to initiate replication.

Aflashlight battery is an example of a) potential energy b) kinetic energy c) thermal energy d) solar energy

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases