Answer:
Option (d).
Explanation:
Anagyrine is ab alkaloid that is mainly responsible for the crooked calf syndrome. This chemical effects have been tested on the cattle, goats and sheep.
The researchers has found that anagyrine can work as a teratogen. This chemical can cause birth defects in an individual. The angyrina when ingested by woman causes birth defect during early pregnancy.
Thus, the correct answer is option (D).
