Exam 29: Development and Inheritance

Stretching of the cervix causes an increase in the blood levels of

Figure 29-2 Fetus at 10 Weeks Use Figure 29-2 to answer the following question: -Identify the structure labeled "6."

During amphimixis,

Figure 29-1 Early Human Development Use Figure 29-1 to answer the following question: -Identify what process is occurring at the structure labeled "13."

If fertilization occurs,the ________ is maintained because the embryo secretes ________.

In ________,a sample of amniotic fluid is removed and the fetal cells it contains are analyzed.

Which embryonic germ layer forms connective tissues such as bone and cartilage?

A space opens within the inner cell mass that will form the

If a color-blind (X-linked recessive trait)man marries a woman who is heterozygous for the trait,what proportion of their male offspring can be expected to be color blind?

Figure 29-2 Fetus at 10 Weeks Use Figure 29-2 to answer the following question: -Identify the structure labeled "2."

The site where fertilization normally occurs is in the

A trimester is ________ months long.

Which embryonic germ layer forms the linings of the respiratory and digestive tracts?

The period from 1 month to 2 years is known as ________.

Outline the events that take place between exposure of the oocyte to spermatozoa and formation of the first blastomere pair.

The region known as the primitive streak is the site of

What activity during oocyte activation prevents penetration by additional sperm?

The neonatal period extends

The extraembryonic membrane that gives rise to the urinary bladder is the

How many chromosomes do human gametes contain?