What term means pertaining to or existing at or from the very beginning

Which of the following is a cause of a dna mutation? o a. the linking of amino acid subunits into a long chain o b. the transcription of dna into rna o c. an error in the repair of damaged dna d. the diffusion of molecules across the cell membrane submit

Aheterozygous normal male marries a woman with a sickle cell anemia. give the genotypes and possible phenotypes of the offspring

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.