Multiple choice

The eyes begin to develop at the end of ______.

  1. 4th week of pregnancy

  2. 8th week of pregnancy

  3. 12th week of pregnancy

  4. 24th week of pregnancy

  5. None of the above

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The eye begins to develop as a pair of optic vesicles on each side of the forebrain at the end of the 4th week of pregnancy.