Hornless cattle is dominant over horned. a homozygous hornless bull is mated with a homozygous horned cow. what will be the genotype and phenotype of the first generation?

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis