For Normal Sperm Development, the Testes Must Be Kept About

question 135

Multiple Choice

For normal sperm development, the testes must be kept about

• A) the same temperature as the brain.
• B) 1.1°C cooler than core body temperature.
• C) 1.1°C warmer than core body temperature.
• D) 4.8°C cooler than core body temperature.
• E) 4.8°C warmer than core body temperature.

---

Definitions:

Frameshift

A type of genetic mutation caused by insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three, leading to a shift in the reading frame of the genetic message and resulting in a potentially nonfunctional protein.

Transposable Element

A DNA sequence that can change its position within the genome, potentially altering or disrupting the genes into which it moves.

Deletion

Mutation in which one or more nucleotides are lost from DNA.

Anticodons

Sequences of three nucleotides in tRNA that are complementary to codons in mRNA, ensuring the correct amino acids are incorporated in protein synthesis.