Exam 2: Heredity, Environment, and Prenatal Development

An environmental agents that interfere with normal prenatal development is known as:

Your spouse is a carrier of a recessive trait for a disability. If you are also a carrier, what is the chance that your offspring will have the disability?

Siblings who are conceived from ovum that splits after fertilization with each half having the same genetic material are known as:

Amy's fetus is 5 inches long. The fetus is in which prenatal period?

The female reproductive tract which extends from the ovaries to the uterus is known as:

Cell division that results in two different cells with 23 chromosomes is known as:

Josh has a long face and prominent ears. He is short and has social anxiety and language delays along with mild retardation. Josh may have:

A child's sex is determined by:

Describe what the "point of viability" is and when it occurs.

Studies of maternal malnutrition show that:

What are the four bases of DNA and what are the possible pairs of these bases?

Although thousands of sperm are released during ejaculation only about 250 survive the trip up the fallopian tube.

Jane has a flat facial profile and almond shaped-eyes. She also has slow motor development and mental handicaps. She shows some symptoms of:

Which of the following is a possible pairing of bases in DNA?

List five characteristics associated with maternal smoking.

Sperm usually live for only 48 hours.

Joey bruises easily and has prolonged bleeding after minor injuries. Joey may suffer from:

Sickle cell anemia may have persisted in certain populations because of what survival advantage?

The organ that connects the circulatory systems of mother and fetus is known as the:

Twin studies focus on the special relationships and closeness of twins.