Exam 2: From Conception to Birth

Each reproductive cell contains:

Risks to development at apparent at conception, pregnancy, and birth but the risks can be _____ if mothers and fathers, professionals, and the community work to promote healthy prenatal development.

Thresholds, as they relate to harm from any teratogen, are difficult to set because one teratogen may _____ the harm from another teratogen.

Genetic _____ distinguishes each person and allows for adaptation.

Cindy is doing a presentation on prenatal development and wants to present the three main periods of prenatal development in order from conception to birth. Cindy's presentation uses the following order:

The third period of gestation is the _____ period.

Bruno and Juliana moved to the United States from Mexico 2 years ago and just had their first baby. Although Bruno and Juliana's SES is lower than their native-born peers, their baby was born at a healthy weight, due in part, to the support of their social network. This phenomenon is called the:

Babies born slightly under 1,500 grams (3 pounds 5 ounces) are considered:

What is the relationship among DNA, chromosomes, and genes?

Fraternal twins are also called _____ twins.

Alcohol is one teratogen that results in dose-related damage.

The statistic that indicates how much of the variation in a particular trait can be traced to genes is called:

A teratogen is any agent or condition that increases the risk for:

Some teratogens are virtually harmless until exposure reaches a certain level.

Is alcoholism genetic or cultural?

Anoxia refers to:

What surprises came from the Human Genome Project?

Harry was a preterm newborn who was born after 26 weeks of prenatal development. He now is a healthy, happy 2-year-old. Harry's ability to survive after being born so early was due in part to his reaching the:

The Apgar scale refers to the age at which a fetus might survive if born.

When infants turn their heads and suck in response to a touch on the cheek, they are demonstrating the: