How to make a red flower: the combinatorial effects of pigments. AOB Plants 8: plw013. Link Ng, J., and S ... Competition for hummingbird pollination shapes flower color variation in Andean Solanaceae ...

No one was sure how animals or plants passed down traits. And Darwin knew that the lack of an explanation for heredity left a big gap in his theory of ... or height or flower hues, were carried ...