Question

Q6. Why some watermelons and papayas are found seedless?​

Answer 1

Explanation:

A seedless papaya fruit usually comes from a female tree. ... A female requires pollen from a male or hermaphroditic plant to produce fruit. Most of the time, when female plants don't get pollen, they fail to set fruit. However, unpollinated papaya female plants sometimes set fruit without seeds.

Watermelon breeders discovered that crossing a diploid plant (bearing the standard two sets of chromosomes) with a tetraploid plant (having four sets of chromosomes) results in a fruit that produces a triploid seed. ... This triploid seed is the seed that produces seedless watermelons