What is usually present in the central cell of a mature embryo sac?
Answer and explanation
Correct answer: Two polar nuclei
The central cell is the largest cell of a typical mature embryo sac and normally contains two polar nuclei, one contributed by each pole. They may fuse to form the secondary nucleus. The egg and synergids form the egg apparatus at the micropylar end, whereas the three antipodals lie at the chalazal end.
Frequently asked questions
What is the correct answer to this question?
Two polar nuclei
Why is this the correct answer?
The central cell is the largest cell of a typical mature embryo sac and normally contains two polar nuclei, one contributed by each pole. They may fuse to form the secondary nucleus. The egg and synergids form the egg apparatus at the micropylar end, whereas the three antipodals lie at the chalazal end.
Which subject and chapter does this question cover?
This is a Class 12 Biology question. Chapter: Chapter 1: Sexual Reproduction in Flowering Plants. Topic: Development of seed and formation of fruit.
