Question

21.In yeasts reproduction occurs by O spore formation O budding O binary fission PO fragmentation​

Answer 1

Answer:

Yeast is an asexually reproducing organism which is known to reproduce only when the favorable conditions are met. In yeast reproduction, the parent body remains intact and the new cell is detached from the body easily under certain conditions.

Answer 2

Answer:

budding

Explanation:

yeast is one of the organisms present in the nature who does not follow the asexual mode of reproduction, instead they have a different approach in which the new cell is born from the parent cell. Now depending upon the way of asexual reproduction, the parent cell may not be in existence after the formation of daughter cells or it may live side by side with the daughter cell.

Now let’s discuss all the options step by step. First let’s talk about Binary fission, in this mode the parent cell divides itself into two daughter cells by multiplying all the cell components and equally distributing between the two daughter cells so formed. Binary fission is not dependent upon the external condition and it can occur anytime. Amoeba is known to reproduce via binary fission.

Now the next is the spore formation, in this the parent cell prepares the cell organelles required for the daughter cell and collects it in a from of a cell and it releases those new cells into the environment and whenever the daughter cell finds the external conditions suitable it get developed into adult and thus forming the daughter cell. Most fungi are known to reproduce via spore formation and it is their distinct character.

The other option we have Is the fragmentation, now this is somewhat similar to the budding but the difference is that in fragmentation the parent cell cuts off one of its parts by accumulating required cells in that area and then it results in the formation of a new daughter cell.

Now talking about the budding option, in this the new daughter cell grows on the body of the parent cell and it tends to detach itself whenever the conditions are suitable in the external environment. The parent cell lives independent of the daughter cell and vice-versa after the detachment.

So, from the above discussed points we can say that the correct option for the question is the option D, Budding.