In the following abnormalities of the eye which one is a serious condition that leads to blindness

Which of the following abnormalities of the eye can lead to blindness?

Which of the following abnormalities of the eye can lead to blindness?

Deficiency of which vitamin may lead to night blindness?

Mention the chromosomal abnormalities concerned with the following condition in humans: Down syndrome

Mention the chromosomal abnormalities concerned with the following condition in humans: Klinefelter syndrome

Mention the chromosomal abnormalities concerned with the following condition in humans: Turner syndrome