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Inheritance › View

The image shows the pattern of inheritance for colorblindness.  From this diagram we can tell that colorblindness is
A.     a codominant trait
B.     a sex-linked trait
C.     carried on the Y chromosome
D.     is associated with a dominant allele

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Cell - Fundamental Unit of Life › View

Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?

A. passive transport by diffusion

B. active transport using ATP 

C. passive transport by osmosis

D.  osmosis

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