Asexual Reproduction
Asexual Reproduction
Asexual Reproduction: The type of reproduction that takes place without the process of gamete (sex cell) formation is called asexual reproduction. As only somatic cells are involved it is also called as somatogenic reproduction. This process is very common in unicellular organisms and is said to be the simplest type of reproduction e.g. binary fission in amoeba, budding in hydra, spore formation in Rhizopus and fungus, vegetative propagation in flowering plants like rose etc. This type of reproduction takes place commonly in lower plants and animals, where the body is not very complex. There are different forms of asexual reproduction :
1. Fission : In this type of reproduction whole body acts as a reproductive unit. The nucleus of the unicellular parent organism divides into two followed by division of cytoplasm, resulting in two daughter cells of almost equal size. It is commonly seen in Euglena, Ameoba. Depending on the number of division, fission can be binary fission, longitudinal fission and multiple fission.
2. Fragmentation :These organisms are formed of cells and tissues but lack differentiated specialised tissue and organs. Such organisms are produce by breaking of theri bodies into small pieces called fragments. Each fragment is capable of developing inot a complete organism. Example :flatworm, echinoderm,sea anemones, filamentous green algae .
3. Budding : It involves production of a new individual form an outgrowth or small projecrtion, from the parent, called a bud. It is commonly seen in yeast, some protozoans and ceratin lower organisms like Hydra and sponges.
4. Regeneration : This is the abiltiy of an organsim to regenerate its lost part of the body which has been removed as an injury or by autonomy. Eg : Planaria
5. Spore formation : it is a common method of asexual reproduction in fungi and bacteria. The spores are produced in specialised strructures called as sporangium in case of fungi. Non - motile and non - motile spores are called aplanospores while the motile and flagellated spores are called as zoospores. The spore are libertaed after rupturing of sporangial wall.
6. Vegetative reproduction : It is the method in which parts other than seeds are used as propagules . They are classififed as natural and artificial method.
There are several methods of natural vegetative propagation . They are By root tubes, By underground modified stems, By runners, node of potato, Rhizome of ginger, corn of banana and bulb of garlic and onion, by leaf etc.
Artificial Method :
These are man made and develpoed by plant growers and horticulturist for commercial prooagation of crops. Some common methods are Cutttiing, Layering, Grafting, Plant tissue culture etc.
Reproduction is essential for continuation of _______________________ | |||
| Right Option : A | |||
| View Explanation | |||
Asexual reproduction through root is poosible in which of the following: | |||
| Right Option : C | |||
| View Explanation | |||
Which animals reproduces asexually? | |||
| Right Option : A | |||
| View Explanation | |||
Students / Parents Reviews [20]
My experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thIt was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
Eshan Arora
8thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
Hridey Preet
9thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Shreya Shrivastava
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thMy experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
