Each tralt of a plant is determined by one gene

one dominant gene

a pair of genes

an allele

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

What was photo 51 with rosalind franklin?

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings