Asexual reproduction in animals, Biology

Asexual Reproduction in Animals

Reproduction may be referred as production of true copies. Most of the animals that are quite familiar to us generate male and female gametes (sperms and eggs). These gametes unite together to form a zygote that subsequently develops into an adult that is a copy of the parents. This type of reproduction is called sexual reproduction. There are also a large number of animals, specifically among non-chordates, which reproduce from body parts other than gametes. This does not include sex or sex-cells or meiotic division. It basically involves both growth and regeneration of missing parts. Such type of reproduction is categorised as asexual reproduction and it is extremely common among coelenterates, planarians, polychaetes and oligochaetes. Asexual reproduction is as well called vegetative reproduction; this is because it involves some body part or any special unit generated by it, not related to the gamete-producing organs (ovaries and testes). Actually, asexual reproduction is the most primitive one -the first organisms that evolved on the earth were protistans and they possibly just divided into two - the simplest form of asexual reproduction. Even today, this is the most general type of reproduction among protistans.

Main forms of asexual reproduction

The following are the main types of asexual reproduction.

  • Fragmentation Budding
  • Binary fission
  • Strobilation
  • Multiple fission
  • Formation of special units (or bodies)
Posted Date: 2/5/2013 12:05:38 AM | Location : United States







Related Discussions:- Asexual reproduction in animals, Assignment Help, Ask Question on Asexual reproduction in animals, Get Answer, Expert's Help, Asexual reproduction in animals Discussions

Write discussion on Asexual reproduction in animals
Your posts are moderated
Related Questions
Determine the parts of plant source The natural food colourants from plant sources are classified into 5 types: a) Anthocyanins, b) Betalaines, c) Carotenoids, d) C

Explain Risk Management Risk Management :  The  process  of weighing  policy  alternatives  to accept, minimize or reduce assessed risks and  to select and  implement approp

Determine the stages of healing events The healing events are described in 3 stages Stage 1: Wound healing and formation of woven bone (callus) (2 to 6 weeks) Stage 2: La


Define the Clinical success for the Root Canal Treatment a) Absence of pain and swelling. b) Disappearance of sinus tract. c) No evidence of soft tissue destruction, incl

Lyme disease It is a metazoonoses caused by a spirochaete, Borrelia burgdorferi. The disease based on the specific symptoms, is also known as erythema migrans (ECM) or lyme  arthr

What is a pipette and how is it used? There are lots of types of pipettes (or pipette), but most are basically a fancier version of a medicine dropper or eye dropper. They are

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Describe two differences among green algae and plants. Algae lack tissue differentiation and have no true roots, leaves and stems. The gametangia of algae are single-celled; th

Class of Mollusca - Aplacophora Worm-like, no shell, head or excretory organs mantle with chitinous cuticle or scales or spicules mantle cavity posterior. Aplacophorans are a