Question

Development of animal by asexual reproduction is called as
A. Ontogenesis
B. Embryogenesis
C. Blastogenesis
D. Morphallaxis

Answer 1

Hint: Reproduction is a biological process in which an organism produces new individual organisms of its own kind. Reproduction can also be called breeding or procreation. As the name suggests it’s the production of offspring from their parents. Reproduction is required for the survival of living beings, without which groups of species or animals may cease to exist.

Complete answer: In general there are two reproduction processes which include sexual and asexual reproduction. Sexual reproduction requires the involvement of two specialized organisms. Whereas, asexual reproduction enables the organism to reproduce on its own without the association of another organism. Asexual reproduction is an independent form of reproduction without the involvement of a second organism and does not require the fusion of gametes. Single-celled organisms such as archaea, bacteria, and multicellular organisms such as fungi, plants, and some animals undergo asexual reproduction. Organisms produced by asexual reproduction inherit their parent’s genes.
Ontogenesis – Ontogeny or ontogenesis is defined as the study of an organism's entire life span all the way from its fertilization from an egg to its birth, maturity, and ultimately to its death.
Embryogenesis – Embryogenesis is defined as the development of an embryo. Embryogenesis starts when a sperm cell fuses with an ovum to fertilize it. On fertilization, the embryo develops into a zygote. A zygote is a single diploid cell. The zygote undergoes a cleavage process or mitosis where there is a lack of any significant growth. The zygote undergoes cellular differentiation and develops into an embryo.
Blastogenesis – Blastogenesis is defined as a form of asexual reproduction of a unicellular organism by budding. When cell division occurs in an organism at a particular site, the formation of an outgrowth or bud takes place. This is known as budding. The new organism produced is a clone of the parent organism as this is asexual reproduction. For instance, yeast reproduces through budding and so do corals and hydras.
Morphallaxis – When any tissue dies or degenerates, some organisms have the ability to regenerate the lost or dead tissue. This process of regeneration of a specific tissue in an organism is known as morphallaxis.
Hence, the correct answer is Option C.

Note: Some other types of asexual reproduction include binary fission in organisms such as some flatworms and sea anemones, fragmentation in Cnidarians and echinoderms, parthenogenesis in ants, wasps, bees, etc. and budding in yeast, hydras, and corals as we already discussed.