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

Explain advantages of using bacteria as a source of protein, Bacteria:- ...

Bacteria:- Advantages High yield of protein (60-80%) Can be grown on paraffin, cellulose waste and molasses. Growth rate is fast. Disadvantages  If the bacteri

Who was gregor mendel, Who was Gregor Mendel? The Mendel is considered ...

Who was Gregor Mendel? The Mendel is considered the father of Genetics. He was a monk, botanist and biologist born in Austria in 1822 and who died in 1884. Throughout the years

Describe the phylum arthropoda and metamorphosis, Describe the Phylum Arthr...

Describe the Phylum Arthropoda and Metamorphosis? More than one million different species of arthropods are estimated to exist on the earth today-more than all other animal spe

Air pollution- introduction, Air pollution is complex in origin and varied ...

Air pollution is complex in origin and varied in effect. It is very crucial from the point of human health. Every human being inhales about 15-22 kg of air daily and air is pollute

Define the functional properties of proteins, Define the Functional Propert...

Define the Functional Properties of Proteins? a) Hydration properties (dependent on protein-water interactions), which include properties like swelling, adhesion, dispersibilit

Illustrate nernst equilibrium potential for potassium ions, Illustrate Nern...

Illustrate Nernst equilibrium potential for potassium ions A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is hea

Before purchasing - nursing software, Before Purchasing  Ideally it...

Before Purchasing  Ideally it's wise to buy a readymade software with options to further customize it to suit your managerial functions.   A totally Custom-made softwar

Lipids, How are lipids classified?

How are lipids classified?

Cellular type - endosperm, Cellular Type - Endosperm In this type, as...

Cellular Type - Endosperm In this type, as the name indicates, the division of the primary endosperm nucleus is immediately followed by the laying down of a wall, which is us

Abo blood compatibility for the safety of blood transfusion, Is ABO blood c...

Is ABO blood compatibility enough for the safety of blood transfusion? Moreover ABO blood compatibility the compatibility concerning the Rh blood system must also be checked. A

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