What is the expected phenotypic ratio for a one-factor cross of two hybrid organisms?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Due tonight 10 points will mark brain

Why is it bad that some cancer cells can make their own growth hormones?