action potential asexual reproduction autosome bacteria bacterial growth binary fission cancer cell adhesion cell cycle cell division cell nucleus cell wall chromosome cytokinesis dna dna replication developmental biology drosophila melanogaster endocytosis eukaryote evolution exponential growth female frog gamete generation genetic recombination kinase male meiosis metastasis mitosis motor unit myelin myocyte natural selection oocyte ovum phosphorylation plant cell prokaryote protozoa sex-determination system sexual reproduction signal transduction skeletal muscle somatic spermatozoon stem cell syncytium translation tyrosine tyrosine kinase yeast zygote