Question 72

A drug that is classified as teratogenic may cause birth defects.

Teratogenic drugs are known to interfere with fetal development during pregnancy, leading to various birth defects in the offspring.

A) hair growth

Hair growth is not a recognized effect of teratogenic drugs. Teratogens specifically affect embryonic and fetal development, and hair growth is unrelated to these developmental processes.

B) birth defects

This option is correct because teratogenic drugs are specifically associated with causing birth defects. They can disrupt normal development in the fetus, leading to physical or functional anomalies at birth.

C) drowsiness

While some drugs may cause drowsiness, this effect is not indicative of teratogenicity. Drowsiness is more commonly associated with sedative medications rather than those that affect fetal development.

D) cancer

Cancer is not a direct consequence of teratogenic drugs. Although some substances may have carcinogenic properties, teratogens are primarily defined by their ability to cause developmental issues rather than cancer.

Conclusion

The classification of a drug as teratogenic is specifically related to its potential to cause birth defects, making option B the only accurate choice. All other options either pertain to unrelated effects or do not align with the definition of teratogenicity.