Answer
**Pseudoscientific**: Lysenko's anti-Mendelian theories lacked scientific rigor, relying on ideological conformity rather than empirical evidence. In contrast to Mendel's groundbreaking genetics research, Lysenko's ideas aligned with Soviet political objectives, emphasizing environmental influences and rejecting the role of genes. This divergence from scientific principles contributed to the stagnation of Soviet biology and genetics during Lysenko's dominance.