In Time, Bread Becomes Stale and Grows Mold on the Exposed

question 6

Multiple Choice

In time, bread becomes stale and grows mold on the exposed surfaces. Why does mold not begin growing inside the bread loaf?

• A) Mold can grow only on dry surfaces.
• B) Only molds at the surface of the bread can get oxygen to respire.
• C) Mold actually begins from anywhere inside but produces colored spores only at the surface.
• D) There is an antibiotic antagonism between the bread mold and the internal yeasts that made the bread rise.
• E) The bread was sterilized when it was baked and thereafter mold spores settle only on the outside of the cooled bread.

---

Definitions:

Alleles

Alternate forms of a single gene.

Primates

An order of mammals that includes humans, monkeys, and apes, characterized by large brains, forward-facing eyes, and dexterous hands.

Meiosis

A kind of cell division that produces the sex cells, each of which has half the number of chromosomes found in other cells of the organism.