Molecular/structural Orientations Gradients in an Egg Are Thought to Play

question 32

Multiple Choice

Molecular/structural orientations gradients in an egg are thought to play a significant role in development.What is the origin of such gradients?

• A)During formation of the egg,nutritional as well as informational molecules RNAs)are placed in appropriate positions for the development of the embryo.
• B)When an egg is fertilized,the gradient is set up based on the side of the egg on which the most mitochondria reside.
• C)During early development,the nucleus is placed into position of the highest concentration.
• D)Where the sperm penetrated the egg is the area of highest concentration.
• E)The side facing up has the lowest concentration of molecules.

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