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

Digestive system, explain the digestive system with slides because i want t...

explain the digestive system with slides because i want to prepare this topic for CSS examination

What do you mean by hansens disease, Q. What is Hansen's disease (etiologic...

Q. What is Hansen's disease (etiological agent, mode of transmission, clinical manifestations and prevention)? The etiological agent of the Hansen's disease is bacteria called

Approaches to neuropsychological assessment, Approaches to Neuropsychologic...

Approaches to Neuropsychological Assessment Probably the most useful model of neuropsychological interpretation is described in Reitan and Wolfson's (1993) four approaches to a

What is physiologic adaptation, Physiologic Adaptation Modeling is a su...

Physiologic Adaptation Modeling is a surface specific activity (apposition or resorption) that produces a net change in the size and/or shape of the bone. It is an uncoupled pr

How do arthropods grow, Q. How do arthropods grow? Due to the presence ...

Q. How do arthropods grow? Due to the presence of exoskeleton the growth of an arthropod is periodical during the growth period the animal loses the exoskeleton, develops and g

Name the different level of proteins, Name the different level of proteins ...

Name the different level of proteins There are 4 level of proteins:- a) Primary structure b) Secondary structure c) Tertiary structure d) Quaternary structure

Contractile vacuoles - excretion, Normal 0 false false fals...

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

Coronary prevention, a) The West of Scotland Coronary Prevention Study (WOS...

a) The West of Scotland Coronary Prevention Study (WOSCOPS): The study randomized healthy men between the ages of 45 and 64 years with TC levels higher that 252 mg/dL and LDL chole

Types of surgery in exstrophy of the bladder, Types of Surgery   There ...

Types of Surgery   There may be two options for surgical correction. Urinary Diversion In this following procedures are performed:  1)  Uretero sigrnoidostomy  if there  is

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