All but One of the Following Statements Describes the Necessity

question 68

Multiple Choice

All but one of the following statements describes the necessity of the blood testis barrier.Select the one statement that does not describe a necessity of the blood testis barrier.

• A) Spermatogenesis produces new combinations of genes and chromosomes that results in unique antigens that the immune system may see as foreign.
• B) Spermatocytes undergo meiosis only during puberty, well after the immune system has come to recognize "self" from "non-self" cells.
• C) Sperm can only be produced at temperatures lower than body temperature. Inflammation in the testis could raise the temperature too high to produce sperm.
• D) Foreign antigens produced by the newly formed sperm could initiate an autoimmune response against the developing sperm.

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Definitions:

Sheep

A domesticated ruminant mammal, typically kept as livestock for meat (lamb, mutton) and for wool.

Gastrovascular Cavity

A central cavity in certain simple animals that functions in both the digestion and distribution of nutrients.

Cnidarians

A phylum of aquatic invertebrates that includes jellyfish, corals, and sea anemones, characterized by a simple body plan with a single opening and cnidocytes for capturing prey.

Hydras

Freshwater organisms belonging to the phylum Cnidaria, known for their simple tubular body and radial symmetry.