Multiple choice

Number of male nuclei in pollen tube is

  1. two

  2. one

  3. three

  4. four

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

The pollen tube arises from the tube nucleus inside the pollen grain and grows through the tissue of the style and ovary. It has two male nuclei. Eventually, the pollen tube reaches the ovule, permitting the sperm nuclei to reach the ovule and fertilize the egg cells.