Spectrin is a protein found in all eukaryotic cells that provide support to the plasma membrane.
a. true
b. false

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

Where does the information about where each transcription factor binds originate?

Which kind of worm has a closed circulatory system? a planarian b fluke c pinworm d an earthworm