Genetic Testing of an Embryo Is Available to Couples Who

question 43

Multiple Choice

Genetic testing of an embryo is available to couples who want to avoid passing on a genetic defect to their offspring.One method of testing involves removing a single blastomere from an 8-cell stage embryo and analyzing it to determine if it carries the mutant gene.If no mutation is found,the now 7-cell embryo can be implanted in the woman,and it can go on to develop into a healthy infant.These results indicate that

• A) at least one of the cells in the human embryo at the 8-cell stage is not used in development.
• B) the embryo can compensate for the loss of a cell.
• C) not all cells are equally important.
• D) the human embryo at the 8-cell stage has not yet formed an inner-cell mass.
• E) the cell that is removed for testing is derived from the trophoblast.

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Definitions:

Corrupt Government

is a government marked by the abuse of entrusted power by elected officials for private gain, manifesting in various forms such as bribery, nepotism, embezzlement, and influence peddling.

Southern Planters

Wealthy individuals in the antebellum South who owned large estates and relied on enslaved African Americans for labor.

Jay Treaty

A 1794 treaty between the United States and Great Britain that sought to settle outstanding issues from the American Revolutionary War and facilitated ten years of peaceful trade between the two countries.

Revolutionary War

The conflict between Great Britain and its Thirteen Colonies in North America from 1775 to 1783, which led to the colonies gaining independence and becoming the United States.