You Are Trying to Explain to a Friend the Concept

question 48

Multiple Choice

You are trying to explain to a friend the concept of the vicious cycle of depression. To which mutual acquaintance will you refer to illustrate the concept?

• A) Sandra, who has felt worthless ever since she dropped out of university, and has been so depressing to be around that some of her friends have avoided her.
• B) Joe, who dropped out of college last year because he didn't feel he fit in, and he's been looking for work ever since.
• C) Mike, whose girlfriend left him a few months ago.
• D) Rasheeda, who had a huge fight with her mother, lost her job, and then sprained her ankle.

---

Definitions:

Dizygotic Development

The biological process that leads to the birth of two fraternal twins from two separate eggs fertilized by two different sperm.

Dominate Genes

Genetic traits that are expressed in an organism's phenotype, overriding the expression of recessive genes when both are present.

DNA Molecules

The carriers of genetic information in living organisms and viruses, composed of two long strands forming a double helix, containing genes encoded by the sequences of nucleotides.

Chromosomes

Threadlike structures made of DNA molecules that contain the genes, found in the nucleus of most living cells, carrying genetic information in the form of genes.