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Chapter 3: Problem 13

List three teratogens, and explain how they disrupt prenatal development.

Short Answer

Expert verified
Three teratogens include alcohol, tobacco, and thalidomide. Alcohol can lead to FASDs, including physical, behavioral, and learning abnormalities. Tobacco contributes to SIDS, low birth weight, and lung development issues. Thalidomide can cause severe limb abnormalities when exposure occurs during the first trimester.

Step by step solution

01

Identify Three Teratogens

Some common teratogens include alcohol, tobacco smoke and certain medications such as thalidomide.
02

Explain the Effects of Alcohol

Exposure to alcohol in the womb can lead to Fetal Alcohol Spectrum Disorders (FASDs), which encompasses a range of effects including physical abnormalities, behavior and learning problems.
03

Explain the Effects of Tobacco Smoke

Tobacco smoke can lead to Sudden Infant Death Syndrome (SIDS), low birth weight, and issues with lung development.
04

Explain the Effects of Thalidomide

Exposure to thalidomide during the first trimester of pregnancy can lead to severe limb abnormalities in the fetus, a condition that was historically termed 'thalidomide syndrome'.

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Most popular questions from this chapter

Why does exposure to teratogens produce more severe health effects in an embryo than in a fetus?

Why is it necessary for spermatogenesis and oogenesis to generate stem cells?

Describe the events of fertilization.

A dog has 39 pairs of chromosomes. Considering only the random alignment of chromosomes, how many genetically different puppies are possible when two dogs mate? Is this number an underestimate or overestimate of the actual total? Why?

The same birth defect syndrome can be caused by a mutant gene or exposure to a teratogen. How do the consequences of each cause differ for future generations?
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