Hermaphroditism, Biology

Assignment Help:

Hermaphroditism

You would have completely appreciated now that sexual reproduction is definitely the more advanced type of reproduction. It gives for combination of genes from different genetic stocks and imparts the potentiality of better adaptation to the environment and evolution. The involved sex cells (gametes) that are the eggs and sperms come from different individuals that are the female and the male. Species having separate sexes are called dioecious such species are as well called unisexual - composed of individuals of any one sex. But a dissimilar condition pervails in many non-chordates in which both types of organs (testes and ovaries) are found in similar individual. This condition is called bisexualism or more popularly Hermaphroditism and such types of individuals are termed monoecious. The term hermaphrodite comes from Greek mythology where Hermaphroditos the son of Hermes and Aphrodite possessed both female and male sex characters. Hermaphroditism is common in non-chordate groups. In the several incipient forms we can see it even in the ciliate protozoans such as Paramecium. From the account of conjugation of Paramecium, it is clear that it has both a male and a female pronucleus. So each Paramecium serves as a male and a female. In Paramecium during Autogamy, similar micro-nuclear changes as seen during conjugation take place in the single individual. But here like there is no second individual involved, it is comparable to self-fertilisation. Among Metazoa, Hermaphroditism is the rule in flatworms, (Platyhelminthes), pulmonate among gastropods, earthworms and leeches (Annelida) etc. additionally, Hermaphroditism occurs among other animals also, as in some bivalve molluscs.


Related Discussions:- Hermaphroditism

Linkage of health with development, Linkage of Health With Development ...

Linkage of Health With Development Health, in its comprehensive or holistic sense, refers to the state of completephysical, mental, social and spiritual well being of a person.

Test of deep vein thrombophlebitis, Test of Deep vein Thrombophlebitis ...

Test of Deep vein Thrombophlebitis Place blood pressure cuff on unaffected calf and inflate until pain is elicited (usually greater than 150 mm Hg).  Place blood press

Conductometry, conductometry and its uses in biology

conductometry and its uses in biology

Germ line gene therapy, Germ line gene therapy - This approach either targ...

Germ line gene therapy - This approach either targets to correct the totipotent cells within human conceptus or stimulate the genetic modifications within reproductive cells that

Differences of transposable elements in e. coli, Discuss the similarities a...

Discuss the similarities and differences of transposable elements in E. coli, yeast, plants, and Drosophila.

What are alleles of a gene, What are alleles of a gene? Diploid individ...

What are alleles of a gene? Diploid individuals have paired chromosomes. For instance in humans there are 23 pairs of chromosomes totalling 46 chromosomes. Each pair comprehend

Zoonotic diseases and trade, Zoonotic diseases and trade Disease and t...

Zoonotic diseases and trade Disease and trade have a long-standing, interwoven history. During the 14th century, Europeans realized the value of exotic nature of goods and mat

Genetics, What is Mega sporogenesis

What is Mega sporogenesis

Define recommended dietary allowance for folate (rda), Define Recommended D...

Define Recommended Dietary Allowance for Folate (RDA)? Folate requirements are the intake levels necessary to prevent deficiency with clinical symptoms. The requirements are ex

Metaphase chromosomes, Metaphase chromosomes: Each metaphase chromoso...

Metaphase chromosomes: Each metaphase chromosomes is a duplicated structure which consists of two sister chromatids, attached at a point called centromere or primary constric

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