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A color-blind woman marries a man who is not color-blind. All of their sons, but none of their daughters, are color-blind. Which of the following statements correctly explains these results?

When the concentration of solutes outside the cell, and inside the cell, are in equilibrium the solution is said to be; 

When a cell is placed in an isotonic solution, water molecules will tend to

Which of the following sugars is a monosaccharide:

Which of the following tests should be heated in a boiling water bath:

In the Iodine test, a positive result indicates the presence of :

The two main functions of the rough endoplasmic reticulum are the production of

  1 liter is composed of how many grams of water? (1 cm^3 of water = 1 gram)

Because the cell membrane allows some molecules to pass through it, but not others, it is said to be

This organelle often ships proteins to the Golgi apparatus.