Conjugation – protozoan, Biology

Assignment Help:

Conjugation – Protozoan

Conjugation is characteristic of ciliates. The details vary from species to species. The general features can be observed in Paramecium sps. which has one macronucleus and one micronucleus. Two ciliates ready for conjugation partially unite. The body surface and pellicle undergo considerable changes. The macronucleus disintegrates and the micronucleus divides twice to give rise to four haploid pronuclei. Three of these disintegrate and the fourth forms a stationary and a migratory pronucleu.

1976_Conjugation – Protozoan.png

Figure:  conjugation  in Paramecium caudatum

The latter moves into the other conjugant. The two organisms now separate and the pronuclei unite to form zygote. after several post conjugation divisions the macronucleus and micronucleus are formed restoring the normal nuclear complement.


Related Discussions:- Conjugation – protozoan

Create a dichotomous key for ant, Create a dichotomous key the following or...

Create a dichotomous key the following organisms, ant, butterfly, fly, beetle, grass hopper, wasp, ladybug, roach and dragonfly.

Contrast the reproduction of bacteria with that of frogs, Contrast the repr...

Contrast the reproduction of bacteria with that of frogs. Bacteria replicate asexually by splitting in two. Frogs reproduce sexually by producing sperm and eggs. One sperm and

Define low water permeability across the luminal membranes, A healthy perso...

A healthy person is on a diet that having of very small amounts of water. A. This person will make a large volume of dilute urine with low amounts of dissolved solutes. B. T

How does glucose help in the formation of atp from adp?, GLUCOSE IS OXIDISE...

GLUCOSE IS OXIDISED TO PRODUCE ENERGY TO GIVE ADP TO FORM ATP

Cellular Respiration, what two gases are released by animals during the pro...

what two gases are released by animals during the process of cellular respiration

Sastry, he heartbeat begins with the depolarization of the

he heartbeat begins with the depolarization of the

Define beaker - nutritional biochemistry, Define Beaker - Nutritional Bioch...

Define Beaker - Nutritional Biochemistry? It is used for storing a liquid to be used in a reaction and for dissolving a substance in a solvent to make its solution. A beaker sh

Prosthetic valve endocarditis, The risk of PVE is greatest during the initi...

The risk of PVE is greatest during the initial 6 months after valve surgery (particularly during the initial 5 to 6 weeks) and thereafter declines to a lower but persistent risk (0

Entropy, Entropy is the degree of disorder in a system. As the energy is t...

Entropy is the degree of disorder in a system. As the energy is transferred from one form to another form, some of it is lost as heat; as the energy decreases, the disorder in sys

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