Mendel crossed purebred purple-flowered plants with purebred white-flowered plants, and all of the resultingoffspring produced purple flowers. The offspring are all , and the allele for purple flowers is __.

A) heterozygotes... recessive
B) heterozygotes... dominant
C) homozygotes... recessive
D) homozygotes... dominant

The scales shown in the introduction measure mass, or the amount of matter in a particular object. the scientific law of conservation of mass states that matter cannot be created or destroyed during a chemical reaction, but it can change from one form to another. did the simulation support this scientific law? explain why or why not.

Draw a simple labelled diagram if a collenchyma tissue

Who discovered tuberculosis bacteria?