To study binary fusion in amoeba and budding in yeast with help of slides. .
Answers
Experiment to Observe Binary Fission in Amoeba and Budding in Yeast !
Experiment:
Objective:
To study (a) binary fission in Amoeba and (b) budding in yeast with the help of prepared permanent slides.
Apparatus and Materials Required:
Permanent slides of Amoeba showing binary fission and yeast in budding, and a compound microscope.
Theory:
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Reproduction is one of the basic characteristics of a living organism. An organism reproduces to produce more of its own kind. Reproduction may be either asexual or sexual.
The type of reproduction that takes place without gametes forming is called asexual reproduction. Sexual reproduction is the type of reproduction in which both the male and female gametes are involved.
Asexual reproduction is common in lower plants and some lower animals. It is a process of rapid multiplication in which the new organisms produced are genetically identical to the parent. Sexual reproduction is common in higher plants and most animals. The organisms produced by this method are not genetically identical to the parents.
Asexual reproduction may be of various types such as binary fission, multiple fission, budding, fragmentation, sporulation and vegetative propagation.
Answer:
Binary Fission in Amoeba
Amoeba is a unicellular organism, and just like bacteria, it reproduces through binary fission. After replicating its genetic material through mitotic division, the cell divides into two equal-sized daughter cells. In this method, two similar individuals are produced from a single parent cell. An amoeba that is about to undergo division grows larger, and eventually, its nucleus extends and divides into two. The division of cytoplasm follows the division of the nucleus. So, two amoebae are produced from a single parent, and the parent’s identity is technically “lost.
Budding in Yeast
easts are non-green, eukaryotic, single-celled microorganisms belonging to the kingdom fungus. They are generally larger than the bacteria and they typically measure 3-4 µm in diameter. Yeast cells reproduce asexually by an asymmetric division process called budding.
In yeast, budding usually occurs during the abundant supply of nutrition. In this process of reproduction, a small bud arises as an outgrowth of the parent body. Later the nucleus of the parent yeast is separated into two parts and one of the nuclei shifts into the bud. The newly created bud divides and grows into a new cell.
