Fig. 1
From: Short-term perinatal oxygen exposure may impair lung development in adult mice
Principal Component Analysis (PCA). The Scree plot demonstrates the Eigenvalues of the principal components in the PCA analysis. The PCA presents one component with an eigenvalue of > 1, which explains 98.03% of the total variation in cell cycle gene expression at 4 weeks (a). Similarly, one component with an eigenvalue of > 1 illustrates 97.92% of the total variation in cell cycle gene expression at 12 weeks (b)