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

Water loss during excretion, Water loss during excretion In terrestria...

Water loss during excretion In terrestrial animals body water is also lost during excretion of nitrogenous wastes. A number of physiological adaptations have taken place to mi

#title.zoology., #question.why obelia is considered of special interest in ...

#question.why obelia is considered of special interest in zoology.

Collecting tubule - vertebrate kidney, Normal 0 false false ...

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

Eggs of hen, EGG S OF HEN It is a meiolecithal egg which is oval. T...

EGG S OF HEN It is a meiolecithal egg which is oval. The animal pole is found in the form of a small germinal disc. The vegital pole has two types of yolk viz. White yol

Systems of human body, Systems of Human Body Many organs work in a coo...

Systems of Human Body Many organs work in a coordinated'manner to form a system. For example in our-body the nose, the trachea and the lungs form the respiratory system. Table

Explain non-starch polysaccharides, NON-STARCH POLYSACCHARIDES A polysa...

NON-STARCH POLYSACCHARIDES A polysaccharide often termed as complex carbohydrate. Besides starch, a mixture of substances called non starch polysaccharide (NSP), also constitut

Admission information - nursing, Admission Information   The physician ...

Admission Information   The physician and nurses are the primary source of facts concerning the purpose of therapeutic plan and expected outcome of hospitalization. The informa

Define about the deficiency of cyanocobalamin, Define about the Deficiency ...

Define about the Deficiency of cyanocobalamin? Malabsorption of vitamin B 12 can occur at several points during digestion. By far, the most important condition resulting in v

Define the metabolism and respiration of cornea, Define the metabolism and ...

Define the metabolism and respiration of cornea. Metabolism and Respiration of Cornea The cornea requires energy for the maintenance of its transparency. Energy in

What is the difference between phenotype and genotype, What is genotype? Wh...

What is genotype? What is the difference between phenotype and genotype? The Genotype is the genes, DNA nucleotide sequences contained in the chromosomes of an individual, whic

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