Multiple choice

Animal semen for breeding of animals remains fertile for a long time at

  1. 37o C

  2. 4o C

  3. -4o C

  4. -196o C
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Animal semen is preserved at very low temperatures for long-term storage in breeding programs. While 4°C can preserve for short periods, -4°C would allow longer preservation. However, in modern practice, liquid nitrogen at -196°C is used for long-term preservation. Among the options, -4°C is the most reasonable choice for extended fertility.

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