Blog

An embryo produced by in vitro fertilization (IVF) may be tested for genetic disorders prior to implantation. How is this accomplished?

Match the descriptions of congenital disorders below with their names.

Fill in the blanks: In humans, some traits, such as freckles, cleft chin, and widow’s peak are the result of simple dominant-recessive inheritance, in which there are _______ alleles for each trait. (Type a number). Other traits, like skin color and height are the the result of the type of inheritance called _______ inheritance. But most human traits, including intelligence, body weight, and susceptibility to disease, are probably influenced by both heredity and _______ .

The ability of cancer cells to cause new blood vessels to form is called ___.

In chorionic villus sampling, a catheter is used to extract tissue from the chorionic villi, which are finger-like projections of the ___.

The G1 checkpoint prevents the cell cycle from continuing until:

The figure below shows a cell in the mitotic stage of ___.

Bradley was examining a cell under the microscope and noticed the formation of a cell plate in the midline of the cell and the formation of nuclei at opposite ends of the cell. The cell he was looking at was most likely a(n):

The type of cancer treatment that involves using drugs such as Taxol or vinblastine to attack actively dividing cells is called ___.

Place these stages of the cell cycle in the correct order.