Exam 2: Biological Foundations: Heredity, Prenatal Development, and Birth

While observing a special monitor, a physician tells an expectant mother, "As you can see, the legs and arms have just begun to emerge." From this description, you should realize that the two are looking at a(n)

DNA is short for _____ acid.

The cutoff between normal and low birth weight is about ____ pounds.

Infant mortality rate is defined as the percentage of infants who die

José, who was adopted at birth, is found to have personality characteristics more similar to his biological mom than to his adoptive mom. How should you interpret this data?

When her physician mentions the term "crowning," Erica, who is giving birth, should realize that means that her

The sac in which the embryo resides is called the

Maternal stress is most likely to negatively impact a developing embryo/fetus when that stress is

Which physical characteristic is most indicative of an individual with Down syndrome?

What combination would result in a boy?

After learning that his newborn son's birth involved hypoxia, Sven (a knowledgeable nurse) would most likely ask,

If a person had a dominant allele for blonde hair and a recessive allele for red hair, the probability of that person having red hair would be closest to ____ percent.

_____ is characterized by progressive degeneration of the nervous system.

A teratogen is any agent that

The ____ is the cluster of cells in the center of the zygote that will eventually develop into the baby.

_____ sampling is a procedure in which a tissue sample is taken from the placenta.

A Cesarean section is best thought of as

The point at which a zygote burrows into the uterine wall is referred to as

The modern age of viability begins at 16 weeks.

Marsha's doctor informs her that her child is just entering the longest period of prenatal development. About how long has Marsha been carrying her unborn child?