The following graph qualitatively represents the gradients of Nodal and Lefty gene products in an early frog embryo. The position along which primary axis is defined by these gradients? Which curves correspond to these two proteins? 
Definitions:
Self-Directed Humor
The practice of making jokes about oneself to communicate humility, approachability, or for self-entertainment.
Competition
The rivalry among businesses or individuals for resources, clients, or market share.
Farsightedness
The ability to understand the long-range implications of actions and policies.
Technological Developments
Refers to advancements and innovations in technology that improve processes, products, or services.
Q2: The biomolecules necessary for life are based
Q8: Indicate true (T) and false (F) statements
Q16: Which of the following molecules can serve
Q21: Which is NOT a macronutrient?<br>A) Fat<br>B) Polyunsaturated
Q27: Indicate whether each of the following descriptions
Q34: Malignant cancer cells that have entered the
Q40: Which of the following motor proteins are
Q45: Although limited amounts of vitamin K are
Q48: Considering the diagram below, which summarizes two
Q49: Fill in the blank in the following