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Introduction:
The reproduction in which the offspring arises from a single organism and genes of only one parent are inherited is called asexual reproduction. The fusion of gametes, changes in the chromosomes, and crossing over are not involved in asexual reproduction.
Answer to Problem 1TYK
Correct answer:
The term parthenogenesis refers to a mode of asexual reproduction, which involves the development of the offspring from unfertilized eggs.
Explanation of Solution
Explanation/Justification for the correct statement:
Option (a) is given as parthenogenesis. The reproduction process where the offspring develops from an ovum without fertilization is called as parthenogenesis. It is the process where offsprings are generated by mitosis, or by meiosis, or by the fusion of two of the products of meiosis. Parthenogenesis occurs in a wide diversity of lineages, including certain invertebrates, fishes, lizards, snakes, and birds. This process usually is observed in some invertebrates, fishes, lizards, snakes, birds, and plants. It is a form of asexual reproduction. The embryos develop without fertilization. Hence, Option (a) is correct.
Explanation for incorrect answers:
Option (b) is given as budding. Budding is also a type of asexual reproduction. The new organism develops from a bud or an outgrowth with the help of cell division. The yeast cells also produce a small bulb-like structure called the bud. So, it is incorrect.
Option (c) is given as regeneration. The process of restoration, renewal, and growth is called regeneration. The process of regeneration is used in cells, organisms, genomes, and others. In some animals, some parts of the body can be regenerated. So, it is incorrect.
Option (d) is given as fission. The fission is the process of division of a single cell or an entity, which generates two or more parts. These parts develop into separate entities independent of each other. Most of the cells undergo fission. A single-celled organism such as Paramecium and Amoeba undergo binary fission. So, it is incorrect.
Hence, options (b), (c), and (d) are incorrect.
The type of reproduction, in which the offspring develops from the unfertilized eggs, is called parthenogenesis.
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Chapter 47 Solutions
Biological Science (6th Edition)
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