CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -seeded fruits may be induced by treating infertile plant flowers with auxins (Indole carboxylic acid). These hormones reach the brink concentration before pollination and so lead to seedless fruits. So, the right answer is ‘IAA and GA3 ’.

Detailed explanation-2: -DefH9-iaaM gene is expressed in the ovules and placenta but also in the tissues derived from them, allowing the synthesis of auxin also in later stages of fruit growth. This continuous supply of auxin produces seedless fruits that are equal or bigger in size compared to pollinated fruits.

Detailed explanation-3: -Gibberellins are used in the production of seedless fruit such as seedless grapes, which are normally sprayed with gibberellin to increase the size of each grape.

Detailed explanation-4: -SEEDLESS FRUIT such as navel oranges are propagated asexually, usually by grafting. The most frequent reasons for lack of seed development are pollination failure, or nonfunctional eggs or sperm.

Detailed explanation-5: -Seedless plants are not common, but they do exist naturally or can be manipulated by plant breeders without using genetic engineering techniques. No current seedless plants are genetically modified organisms (GMOs).