Asexual reproduction in animals, Biology

Assignment Help:

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)

Related Discussions:- Asexual reproduction in animals

Etiological factors contributing to lactose intolerance, Q. Etiological fac...

Q. Etiological factors contributing to lactose intolerance? The etiological factors contributing to lactose intolerance include: • Genetic factor • Reduction in jejunal

Embryonic stem cells (es), E mb ryonic stem cells (ES): These a...

E mb ryonic stem cells (ES): These are pleuripotent cells of early embryo (blastocyst) capable of giving rise to all differentiated cells, including germ line cells. Em

Define the sources of vitamin e, Define the Sources of Vitamin E? Vitam...

Define the Sources of Vitamin E? Vitamin E is present in almost all foodstuffs. It is found in wheat germ, corn, nuts, seeds, olives, spinach, asparagus and other green leafy v

Explain the carrying capacity in ecology, Explain the carrying capacity in ...

Explain the carrying capacity in ecology? Carrying Capacity :  We have seen that natural populations do not normally achieve the maximum intrinsic rate of natural increase, o

Blood vitreous barrier as the physio-chemical property, Explain the blood v...

Explain the blood vitreous barrier as the physio-chemical property. Blood Vitreous Barrier: The blood vitreous barrier consists of three components: Tight junctional comp

Briefly explain about semantides, Q. Briefly explain about semantides? ...

Q. Briefly explain about semantides? The information carrying molecules in plants are called semantides, and they have been recognised to be 3 kinds; deoxyribonucleic acid or D

Physiology of digestion, PHYSIOLOG Y OF DIGESTION Food - omnivorous. D...

PHYSIOLOG Y OF DIGESTION Food - omnivorous. Digestion - Intercellular. (i) Mechanical - by chewing, deglutinationm, churnning, peristalais. Under control of medulla oblonge

Spharosome, what is origin ofspharosome

what is origin ofspharosome

Define the concept of health - public nutrition, Define the Concept of Heal...

Define the Concept of Health - Public Nutrition? The most widely accepted definition of health is the one given by WHO (1948) in the preamble to its constitution, Box 1 gives t

Explain dough formation, Explain Dough Formation   Gluten is the prote...

Explain Dough Formation   Gluten is the protein found in wheat. A unique property of gluten proteins of wheat grain endosperm (and  to  a   lesser extent of rye and  barley  g

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd