Exam 2: Heredity Prenatal Development

Diabetes mellitus, epilepsy, and peptic ulcers are caused by genetic factors alone.

Nearly one-third of all pregnancies result in miscarriage.

What is the effect of cigarette smoking during pregnancy?

Which woman has the highest likelihood of having a preterm birth?

The term "infertile" refers to a couple who have been unsuccessful at conceiving. What criterion must be met before this term is used?

What is the fluid-filled ball of cells that develops during the germinal stage of pregnancy?

Which of the following is a defining characteristic of the sperm cell?

According to the Huntington Society of Canada, when is Huntington disease (HD) typically diagnosed?

If you were to paint a picture of a chromosome, what shape would you depict?

In one stage of prenatal development, conception occurs, the zygote divides, and then implantation in the uterine wall occurs. What term describes this stage?

Our phenotype is influenced by the environment.

What is a common characteristic of most individuals who have an abnormal number of sex chromosomes?

It is currently impossible to select the sex of one's child.

Some twin pairs look more like each other than other twin pairs. Which twin pairs resemble each other the most?

Physicians may treat endometriosis through surgery or with hormones that temporarily prevent menstruation.

What is a teratogen? Describe two teratogens and their effects on the developing organism.

What substance was once used to treat insomnia and nausea but caused major birth defects?

What term describes a person who has two alleles for the same trait?

You are out with your friends and you want to dazzle them with your new child development knowledge. You decide to inform your friend Peter of his chromosome pattern. Which pattern do you describe?

Which genes do parents share with their children and their siblings?