Aunque el oxígeno no participa directamente en el ciclo del ácido cítrico, el ciclo opera únicamente cuando hay O2 presente. ¿Por qué?

6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.

What does all of the organ system in a human form

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?