Mis amigos a comprar helado. ir vas van vamos

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays

Do you think the gene eef1 alpha1 supports cell theory? explain your response.