Question

Seedless fruit in banana is produced by
A. Parthenogenesis
B. Triploidy
C. Cross pollination
D. None of the above

Answer 1

Hint: Seeds are highly significant for keeping species name in an ecosystem as they mature to grow as an independent individual over the period of time. Most of the fruits bear seeds.

Complete Answer
Before understanding anything we need to clear a few of the concepts to better understand this question.
Fruits are produced (by convention) after fertilization of male and female gametes inside a flower.
However, there are some plant species that start producing fruits even without any significant fertilization. Such a process is called parthenocarpy and such a food produced is a seedless fruit. We can define parthenogenesis as a biological process that involves zygote formation within any fertilization with male gamete. This phenomenon is commonly observed in Bananas. Therefore, we can say that option A is the correct answer to the question.
Whereas Triploidy is another natural phenomenon that is concerned with the chromosomal structure of a plant. In rare to rare conditions, down organism cells develop a three paired set of chromosomes that eventually causes sterilisation of the plant. Such a phenomenon is common to be observed in Bananas.
Therefore, we can say that the reason behind production of seedless fruit of Banana can also be Triploidy but it is important to note that Triploidy is a rare abnormality therefore cannot be considered the ultimate reason for seedless fruit production. Thus, option B is also an incorrect answer to the question.
However, in this run, Cross pollination is a completely different process. It takes pale far before fertilization therefore, is nowhere concerned with production of seedless fruit. We can define cross pollination as a process in which pollination takes place between flowers of two different plants of the same species.

Therefore, we can say that option A is the correct option.

Note:
The ovary generates fruit, ovules bearing embryo generate to form seed, with nutritious endosperm (stored food material for developing embryo). These are few of the very important transformations that take place in the flower body to form plants.