Q151 / 200 · NEET 2007 · Zoology

Compared to a bull a bullock is docile because of:

  • A
    higher levels of cortisone
  • Correct answer
    B
    lower levels of blood testosterone
  • C
    lower levels of adrenaline/ noradrenaline in its blood
  • D
    higher levels of thyroxine.

Solution

Testis is degenerated in bullock because of which the testosterone level in blood is reduced. This hormone promotes the growth of many body tissues such as muscles. However, in bull, it is active, thereby adding greater musculature; bulls are not docile like bullocks.

Hence, the correct answer is option: 'B'.

More Chemical Coordination and Integration Questions