Exam 24: Development and Inheritance

Because of the risks of dehydration, decreased blood flow to the placenta, and decreased stability of pubic symphysis, pregnant women should avoid all types of exercise.

Following birth, the prolactin concentration in the blood increases and stays elevated for months in order to stimulate the continuous production of milk.

Even though most microorganisms cannot cross the placenta, several drugs and viruses can cross and cause birth defects.

Pluripotent stem cells, like inner mass cells, have the unique ability to develop into all the cells of an organism.

Which of the developmental stages shown in the diagram is the form of the embryo that moves from the uterine (fallopian)tube into the uterine cavity?

By the end of the eighth week of pregnancy, all of the major body systems have begun to develop.

One of the most common causes of dystocia occurs when the fetus enters the birth canal in a breech presentation.

The fetal period of development extends from the end of the second month of pregnancy until birth.

Use the Punnett square of inheritance of red-green color blindness that is shown in the diagram to answer the following question. Recall that uppercase C is the dominant trait and lowercase c is the recessive trait. Which of the following statements would be true if the father was a color-blind male (X^cY instead of X^CY)?

All of the following are pregnancy-induced changes observed in the mother EXCEPT

Which of the following types of inheritance is defined as when neither member of an allelic pair is dominant over the other and the resulting heterozygotic offspring express a phenotype that is intermediate between the two homozygotes?

The hormone that stimulates contraction of smooth-muscle-like cells in the mammary gland resulting in milk being made available to the suckling newborn is called

Use the Punnett square of inheritance of red-green color blindness that is shown in the diagram to answer the following question. Recall that uppercase C is the dominant trait and lowercase c is the recessive trait. Which of the offspring in the diagram would be red-green color blind?

Deoxygenated blood carrying fetal waste products exits the body of the fetus through the

The fetal portion of the placenta is formed by the ____ of the blastocyst.

Substances in breast milk enhance both nonspecific resistance and immunity in the baby.

Which of the following is a potential teratogen?

Amniocentesis involves withdrawing amniotic fluid to analyze fetal cells.

A secondary oocyte is viable for approximately ___ hours after ovulation.

Which of the labeled structures in the diagram ruptures when a pregnant mother's water breaks during labor?